INDEX OF SUBJECTS

Adenosinetriphosphate activity:Sequential changes in the, and the electrolyteexcretory capacity of the nasal glands of theduck (anas platyrhynchos) during the periodof adaptation to hypertonic saline (FLETCHER,STAINER and HOLMES) 375

Aides aegypti (L.):

The effect of some anions and cations uponthe fluxes and net uptake of chloride in thelarva of, and the nature of the uptake mech-anisms for sodium and chloride (STOBBART)

35Ammocoetc larva:

Studies on freshwater osmoregulation in the,of Lampetra planeri (Bloch.). I. Ionic consti-tuents, fluid compartments, ionic compart-ments and water balance (BULL and MORRIS)

485Amphipod:

See CoTophiumAnas platyrhynchos:

Sequential changes in the adenosinetriphos-phatase activity and the electrolyte excretorycapacity of the nasal glands of the duck,during the period of adaptation to hypertonicsaline (FLETCHER, STAINER and HOLMES) 375

Anions and cations:The effect of some, upon the fluxes and netuptake of chloride in the larva of Aidesaegypti (L.), and the nature of the uptakemechanisms for sodium and chloride(STOBBART) 35

Anopheles gambiae:The circadian flight activity of the mosquito:phase setting by the light regime (JONES, HILLand HOPE) 503

Azonal function:And ionic regulation in the central nervoussystem of a phytophagous insect (Carausiusmorosus) (TREHERNE and MADDRELL) 235

Axon mapping:Impulse identification and, of the nineneurons in the cardiac ganglion of the lobster,

Homarus americanus (HARTLTNE) 327

Bioelectric regulation:Of tentacle movement in a dinoflagellate(ECKERT and SIBAOKA) 433

Blood-cell density:The relationship between blood ions and, ininsects (BRADY) 313

Blood ions:The relationship between, and blood-celldensity in insects (BRADY) 313

Blowfly:Hyperphagia in the (DETHIER and GELPEHIN)

191

Carausius morosus:Axonal function and ionic regulation in thecentral nervous system of a phytophagousinsect (TREHERNE and MADDRELL) 235

Carcinus:Spontaneously induced rhythm of tidalperiodicity in laboratory-reared (WILLIAMSand NAYLOR) 229

Cardiac ganglion:Impulse identification and axon mapping ofthe nine neurons in the, of the lobsterHomarus americanus (HARTLJNE) 327

Central nervous system:Axonal function and ionic regulation in the,of a phytophagous insect (Carausius morosus)(TREHERNE and MADDRELL) 235

Cichlid teleost:See Tilapia mossambica

Circadian flight activity:Of the mosquito Anopheles gambiae: phasesetting by the light regime (JONES, HILL andHOPE) 503

Circadian rhythm of activity:Control of the, in the cockroach.

—I. The role of the corpora cardiaca, brain andstress (BRADY) 153

—II. The role of the sub-oesophageal ganglion andventral nerve cord (BRADY) 165

Cockroach:Control of the circadian rhythm of activity inthe.

—I. The role of the corpora cardiaca, brain andstress (BRADY) 153

—II. The role of the sub-oesophageal ganglionand ventral nerve cord (BRADY) 165Current—voltage relations in the isolated giantaxon of the, under voltage-clamp conditions(PICHON and BOISTEL) 343

Cockroach giant axon:Microelectrode study of the resting andaction potentials of the, with special referenceto the role played by the nerve sheath(PICHON and BOISTEL) 357

Colour discrimination:Extraretinal pigmentation and. I. Choice ofcolour of substrate during oviposition inDrosophila melanogaster (VOLPE, CARFAGNAand Di LORENZO) 297

Column of hydra:Conduction and contraction in the (JOSBPH-SON) 179

59° Index of SubjectsConduction and contraction:

In the column of hydra (JOSEPHSON) 179Controlling inputs:

Neural mechanism by which, influence motoroutput in the flying locust (WALDRON) 213

Corophium:Discrimination, previous experience and sub-strate selection by the amphipod (MEADOWS)

553Crayfish central nervous system:

Integration of visual stimuli by the (WIERSMAand YAMAOUCHI) 409

Current-voltage relations:In the isolated giant axon of the cockroachunder voltage-clamp conditions (PICHON andBOISTEL) 343

D

Detour experiments:Short-term learning and interocular transferin, with octopuses (WELLS) 393

Dinoflagellate:Bioelectric regulation of tentacle movementin a (ECKERT and SIBAOKA) 433

—See NematodimumDipteran flight:

Neuro-muscular control of (NACHTIQALL andWILSON) 77

Discrimination:Previous experience and substrate selectionby the amphipod Corophium (MEADOWS) 553

Duck:See Anas platyrhynchot

Electrolyte excretory capacity:Sequestrial changes in the adenosinetriphos-phatase activity and the, of the nasal glands ofthe duck {Anas platyrhynchos) during theperiod of adaptation to hypertonic saline(FLBTCHER, STAINER and HOLMES) 375

Energetics:The jump of the flea: a study of the, and amodel of the mechanism (BENNET-CLARK andLUCEY) 59

Estuarine system:The osmotic behaviour of a number of grap-soid crabs with respect to their differentialpenetration of an (BARNES) 535

Etroplus maculatus (Teleostei):Visual pigments in a tropical freshwater fish(VlRABHADRACHARI, KRISHNAMOORTHY andPARVATHESWARARAO) 307

Extraretinal pigmentation:And colour discrimination. I. Choice ofcolour of substrate during oviposition inDrosopkila melanogaster (VOLPE, CARFAONAand Di LORENZO) 297

Eyespot:On the, of the dinoflagellate, Nematodimum(FRANCIS) 495

Flagellar activity:Thermodynamic aspects of (HOLWILL andSILVESTER) 249

Fluxes:The effect of some anions and cations uponthe, and net uptake of chloride in the larvaof Aides aegypti (L.), and the nature of theuptake mechanisms for sodium and chloride(STOBBART) 35

Flying insects:Respiration and tracheal ventilation in locustsand other (WEIS-FOGH) 561

Freshwater osmoregulation:Studies on, in the ammocoete larva ofLampetra planeri (Bloch). I. Ionic constitu-ents, fluid compartments, ionic compart-ments and water balance (BULL and MORRIS)

485Functional parameters:

Temperature acclimation of the, of thegiant nerve fibres in Lumbricus terrestris L.

—I. Conduction velocity and the duration of therising and falling phase of action potential(LAGERSPETZ and TALO) 471

—II. The refractory period (TALO and LAGER-SPETZ) 481

Giant nerve fibres:Temperature acclimation of the functionalparameters of the, in Lumbricus terrestris L.

—I. Conduction velocity and the duration of therising and falling phase of action potential(LAGERSPETZ and TALO) 471

—II. The refractory period (TALO and LAGER-SPETZ) 481

Grapsoid crabs:The osmotic behaviour of a number of, withrespect to their differential penetration of anestuarine system (BARNES) 535

HHeat production:

Regulation of, by large moths (HEATH andADAMS) 21

Hispid flagella:Propulsion by (HOLWILL and SLEIGH) 267

Homarus americanus:Impulse identification and axon mapping ofthe nine neurons in the cardiac ganglion ofthe lobster (HARTLINE) 327

Homing of single pigeons:—Analysis of tracks (MICHENER and WAL-COTT) 99

Hyperphagia:In the blowfly (DETHIER and GELPERTN) 191

Impulse identification:And axon mapping of the nine neurons in thecardiac ganglion of the lobster, Homarusamericanus (HARTLINE) 327

Index of SubjectsInterocular transfer:

Short-term learning and, in detour experi-ments with octopuses (WELLS) 393

Intertidal teleost:See Xiphister atropurpureui

Ionic regulation:Axonal function and, in the central nervoussystem of a phytophagous insect (Carausiusmorosus) (TRBHERNE and MADDRELL) 235

Isolated giant axon:Current-voltage relations in the, of the cock-roach under voltage-clamp conditions(PICHON and BOISTEL) 343

j

Jump of the flea:The,: a study of the energetics and a modelof the mechanism (BENNET-CLARK andLUCEY) 59

Lampetra planeri (Bloch):Studies on freshwater osmoregulation in theammocoete larva of. I. Ionic constituents,fluid compartments, ionic compartments andwater balance (BULL and MORRIS) 485

Larva:The effect of some anions and cations uponthe fluxes and net uptake of chloride in the,of Aides aegypti (L.), and the nature of theuptake mechanisms for sodium and chloride(STOBBART) 35

Lepidoptera:Muscle activity during flight in some large(KAMMER) 277

Lobster:See Homarus americanus

Locust:Neural mechanism by which controllinginputs influence motor output in the flying(WALDRON) 213

Locusts:Mechanisms for the production of the motoroutput pattern in flying (WALDRON) 201

—Respiration and tracheal ventilation in, andother flying insects (WEIS-FOGH) 561

Lumbricus terrestris L.:Temperature acclimation of the functionalparameters of the giant nerve fibres in.

—I. Conduction velocity and the duration of therising and falling phase of action potential(LAGETSPETZ and TALO) 471

—II. The refractory period (TALO and LAGER-SPETZ) 481

Lung ventilation:The mechanism of, in the tortoise Testudograeca Linn< (GANS and HUGHES) I

MMosquito:

See Anophelei gambiae

591Moths:

Regulation of heat production by large(HEATH and ADAMS) 21

Motor output:Neural mechanism by which controllinginputs influence, in the flying locust(WALDRON) 213

Muscle activity:During flight in some large Lepidoptera(KAMMER) 277

NNasal glands:

Sequential changes in the adenosinetriphos-phatase activity and the electrolyte excretorycapacity of the, of the duck (Anas platy-rhynchos) during the period of adaptation tohypertonic saline (FLETCHER, STAINKR andHOLMES) 375

Nematodinium:On the eyespot of the dinoflagellate (FRANCIS)

495Nerve sheath:

Microelectrode study of the resting andaction potentials of the cockroach giant axonwith special reference to the role played bythe (PICHON and BOISTEL) 357

Net uptake of chloride:The effect of some anions and cations uponthe fluxes and, in the larva of Aides aegypti(L.), and the nature of the uptake mechan-isms for sodium and chloride (STOBBART) 35

Neural mechanism:By which controlling inputs influence motoroutput in the flying locust (WALDRON) 213

Neuro-muscular control:Of dipteran flight (NACHTIGALL and WILSON)

77Noctiluca:

An electrophysiological study of the tentacle-regulating potentials in (SIBAOKA andECKERT) 447

Octopuses:Short-term learning and interocular transferin detour experiments with (WELLS) 393

Osmotic behaviour:The, of a number of grapsoid crabs withrespect to their differential penetration of anestuarine system (BARNES) 535

Phytophagous insect:Axonal function and ionic regulation in thecentral nervous system of a (Carausiusmorosus) (TREHERNE and MADDRELL) 235

Previous experience:Discrimination, and substrate selection bythe amphipod Coropkium (MEADOWS) 553

Production of the motor output pattern:Mechanisms for the, in flying locusts(WALDRON) 201

592Propulsion:

By hispid ftagella (HOLWILL and SLEIGH) 267

Index of Subjects

Respiration:And tracheal ventilation in locusts and otherflying insects (WEIS-FOGH) 561

Resting and action potentials:Microelectrode study of the, of the cockroachgiant axon with special reference to the roleplayed by the nerve sheath (PICHON andBOISTEL) 357

Short-term learning:And interocular transfer in detour experi-ments with octopuses (WELLS) 393

Sodium and water balance:In the cichlid teleost, Tilapia mossambica(POTTS, FOSTER, RUDY and PARRY HOWBLLS)461

Sodium, chloride and water balance:Of the intertidal teleost. Xiphister atropur-pureus.

—I. Regulation of plasma concentration and bodywater content (EVANS) 513

—II. The role of the kidney and the gut (EVANS)Si9

—II. The roles of simple diffusion, exchangediffusion, osmosis and active transport(EVANS) 525

Spontaneously induced rhythm:Of tidal periodicity in laboratory-rearedCarcinus (WILLIAMS and NAYLOR) 229

Stepping patterns:In tarantula spiders (WILSON) 133

Substrate selection:Discrimination, previous experience and, bythe amphipod Coropkium (MEADOWS) 553

Tarantula spiders:Stepping patterns in (WILSON) 133

Temperature acclimation:Of the functional parameters of the giantnerve fibres in Lwnbricus terrestris L.

—I. Conduction velocity and the duration of therising and falling phase of action potential(LAGBRSPETZ and TALO) 471

—II. The refractory period (TALO and LAOER-SPETZ) 481

Tentacle movement:Bioelectric regulation of, in a dinoflagellate(ECKERT and SEBAOKA) 433

Tentacle-regulating potentials:An electrophysiological study of the, inNoctiluca (SIBAOKA and ECKERT) 447

Testudo graeca Linne:The mechanism of lung ventilation in thetortoise (GANS and HUGHES) I

Thermodynamic aspects:Of flagellar activity (HOLWILL and SILVESTER)

249Tidal periodicity:

Spontaneously induced rhythm of, inlaboratory-reared Cardmis (WILLIAMS andNAYLOR) 229

Tilapia mossambica:Sodium and water balance in the cichlidteleost (POTTS, FOSTER, RUDY and PARRYHOWELLS) 461

Tortoise:See Tettudo graeca Linn^

Tracheal ventilation:Respiration and, in locusts and other flyinginsects (WEIS-FOGH) 561

Tropical freshwater fish:Visual pigments in a, Etroplus maculatus(Teleostei) (VIRABHADRACHARI, KRISHNA-MOORTHY and PARVATHESWARARAO) 307

U

Uptake mechanisms for sodium and chloride:The effect of some anions and cations uponthe fluxes and net uptake of chloride in thelarva of Aides aegypti (L.), and the nature ofthe (STOBBART) 35

Visual pigments:In a tropical freshwater fish, Etroplus macu-latUS (TeleO3tei)(VlRABHADRACHARI, KRISHNA-MOORTHY and PARVATHESWARARAO) 307

Visual stimuli:Integration of, by the crayfish central nervoussystem (WIERSMA and YAMAGUCHI) 409

Voltage-damp conditions:Current—voltage relations in the isolatedgiant axon of the cockroach under (PICHONand BOISTEL) 343

Xiphister atropurpureus:Sodium, chloride and water balance of theintertidal teleost.

—I. Regulation of plasma concentration and bodywater content (EVANS) 513

—II. The role of the kidney and the gut (EVANS)

—III. The roles of simple diffusion, exchangediffusion, osmosis and active transport(EVANS) 525

INDEX OF AUTHORS

Adams, Phillip A- See HEATH and ADAMS

B

Barnes, R. S. K. The osmotic behaviour of anumber of grapsoid crabs with respect totheir differential penetration of an estuarinesystem 535

Sennet-Clark, H. C. and Lucey, E . C A . Thejump of the flea: a study of the energeticsand a model of the mechanism 59

BoisteL J. See PICHON and BOISTELBrady, John. Control of the circadian rhythm of

activity in the cockroach.—I. The role of the corpora cardiaca, brains and

stress 153—II. The role of the sub-oesophageal ganglion

and ventral nerve cord 165—The relationship between blood ions and blood-

cell density in insects 313Bull, J. M. and Morris, R Studies on freshwater

osmoregulation in the ammocoete larva ofLampetra planeri (Bloch). I. Ionic constitu-ents, fluid compartments, ionic compart-ments and water balance 485

Carfagna, M. See VOLPE, CARFAGNA and DiLORENZO

D

Dethier, V. G. and Gelperin, A. Hyperphagiain the blowfly 191

Di Lorenzo, M. See VOLPE, CARFAGNA and DiLORENZO

E

Eckert, Roger. See SIBAOKA and ECKERTEckert, Roger and Sibaoka, Takao. Bioelectric

regulation of tentacle movement in a dino-flagellate 433

Evans, David H. Sodium, chloride and waterbalance of the intertidal teleost, Xiphistiatropitrpweus.

—I. Regulation of plasma concentration and bodywater content 513

—II. The role of the kidney and the gut 519—III. The roles of simple diffusion, exchange

diffusion, osmosis and active transport 525

Fletcher, G. L., Stainer, L M. and Holmes,W. N. Sequential changes in the adenosine-triphosphatase activity and the electrolyteexcretory capacity of the nasal glands of theduck {Anas platyrkynchoi) during the periodof adaptation to hypertonic saline 375

Foster, M. A. See POTTS, FOSTER, RUDY andPARRY HOWELLS

Francis, David. On the eyespot of the dino-flagellate, Nematodtnwm 495

Gans, C. and Hughes, G. M. The mechanismof lung ventilations in the tortoise Tettudograeca Linn< 1

Gelperin, A. See DETHIER and GELPERIN

H

Hartline, Daniel K. Impulse identification andaxon mapping of the nine neurons in thecardiac ganglion of the lobster Homarusamericanus 327

Heath, James Edward and Adams, Phillip A.Regulation of heat production by large moths

21Hill, M. See JONES, HILL and HOPEHolmes, W. N. See FLETCHER, STAINER and

HOLMESHolwill, M. E. J. and Silvester, N. R Thermo-

dynamic aspects of flagellar activity 249Holwill, M. E. J. and Sleigh, M. A. Propulsion

by hispid flagella 267Hope, A. M. See JONES, HILL and HOPEHughes, G. M. See GANS and HUGHES

Jones, M. D. R., Hill, M. and Hope, A. M.The circadian flight activity of the mosquitoAnopheles gambiae: phase setting by the lightregime 5 O 3

Josephson, Robert K. Conduction and contrac-tion in the column of hydra 179

Hammer, Ann E. Muscle activity during flightin some large Lepidoptera 277

Krishnamoorthy, R. V. See VIRABHADRACHARI,KRISHNAMOORTHY and PARVATHESWARARAO

Lagerspetz, Karl Y. H. See TALO and LAGER-SPETZ

Lagerspetz, Karl Y. H. and Talo, AnttLTemperature acclimation of the functionalparameters of the giant nerve fibres inLumbricus terrestris L. I. Conduction velocityand the duration of the rising and fallingphase of action potential 471

Lucey, E. C A. See BENNET-CLARK and LUCEY

594 Index of AuthorsM

Maddrell, S. H. P. See TRBHERNE and MADDRELLMeadows, P. S. Discrimination, previous experi-

ence and substrate selection by the amphipodCoropfmtm 553

Michener, Martin C. and Walcott, Charles.Homing of single pigeons—analysis of tracks

99Morris, R. See BULL and MORRIS

NNachtigalL Werner and Wilson, Donald M.

Neuromuscular control of dipteran flight 77Naylor, E. See WILLIAMS and NAYLOR

Parry Howells, G. See POTTS, FOSTER, RUDY andPARRY HOWELLS

Parvatheswararao, V. See VIRABHADRACHARI,KRISHNAMOORTHY and PARVATHESWARARAO

Pichon, Y. and Boistel, J. Current-voltagerelations in the isolated giant axon of thecockroach under voltage-clamp conditions

343—Microelectrode study of the resting and action

potentials of the cockroach giant axon withspecial reference to the role played by thenerve sheath 357

Potts, W. T. W., Foster, M. A., Rudy, P. P. andParry Howells, G. Sodium and waterbalance in the cichlid teleost, Tilapiamossambica 461

R

Rudy, P. P. See POTTS, FOSTER, RUDY and PARRYHOWELLS

Sibaoka, Takao. See ECKERT and SIBAOKASibaoka, Takao and Eckert, Roger. An electro-

physiological study of the tentacle-regulat-ing potentials in Noctiluca 447

Silvester, M. R. See HOLWILL and SILVESTERSleigh, M. A. See HOLWILL and SLEIGHStainer, L M. See FLETCHER, STAINER and

HOLMESStobbart, R. H. The effects of some anions and

cations upon the fluxes and net uptake ofchloride in the larva of Aides aegypti (L.),and the nature of the uptake mechanisms forsodium and chloride 35

Talo, Antti. See LAGERSPETZ and TALOTalo, Antti and Lagerspetz, Earl Y. H.

Temperature acclimation of the functionalparameters of the giant nerve fibres inLumbricus terratris L. II. The refractoryperiod 481

Treherne, J. E. and Maddrell, S. H. P. Axonalfunction and ionic regulation in the centralnervous system of a phytophagous insect(Carausiui morotus) 234

Virabhadrachari, V., Krishnamoorthy, R. V.and Parvatheswararao, V. Visual pigmentsin a tropical freshwater fish Etroplui macu-latus (Teleostei) 307

Volpe, P., Carfagna, M. and Di Lorenzo, M.Extraretinal pigmentation and colour dis-crimination. I. Choice of colour of substrateduring oviposition in DrosophUa melanogaster

297

W

Walcott, Charles. See MICHENER and WALCOTTWaldron, Ingrid. Mechanisms for the produc-

tion of the motor output pattern in flyinglocusts 201

—Neural mechanism by which controlling inputsinfluence motor output in the flying locust

213Weis-Fogh, Torkel. Respirator and tracheal

ventilation in locusts and other flying insects561

Wells, M. J. Short-term learning and interoculartransfer in detour experiments with octopuses

393Wiersma, C. A. G. and Yamaguchi, T. Integra-

tion of visual stimuli by the crayfish centralnervous system 409

Williams, Barbara G. and Naylor, E. Spon-taneously induced rhythm of tidal periodicityin laboratory-reared Carcimis 229

Wilson, Donald M. Stepping patterns in taran-tula spiders 133

—See NACHTIGALL and WILSON

Yamaguchi, T. See WIERSMA and YAMAGUCHI

The Journal of

Experimental Biology

The Journal of

Experimental Biology

EDITED BY

V. B. WIGGLESWORTH and J. A. RAMSAY

VOLUME XLVII

CAMBRIDGEAT THE UNIVERSITY PRESS

1967

PUBLISHED BY

THE SYNDICS OF THE CAMBRIDGE UNIVERSITY PRESS

Bentley House, P.O. Box 92, 200 Euston Road, London, N.W. 1.American Branch: 32 East 57th Street, New York. N.Y. 10022

Printed in Great Britain at the University Printing House, Cambridge

CONTENTS

No. 1. AUGUST 1967PAGE

GANS, C. and HUGHES, G. M. The mechanism of lung ventilation in the tortoiseTestudo graeca Linn6 i

HEATH, JAMES EDWARD and ADAMS, PHILLIP A. Regulation of heat production bylarge moths 21

STOBBART, R. H. The effect of some anions and cations upon the fluxes and net uptakeof chloride in the larva of Aides aegypti (L.), and the nature of the uptakemechanisms for sodium and chloride 35

BENNET-CLARK, H. C. and LUCEY, E. C. A. The jump of the flea: a study of theenergetics and a model of the mechanism 59

NACHTIGALL, WERNER and WILSON, DONALD M. Neuro-muscular control of dipteranflight 77

MICHENER, MARTIN C. and WALCOTT, CHARLES. Homing of single pigeons—analysisof tracks 99

WILSON, DONALD M. Stepping patterns in tarantula spiders 133BRADY, JOHN. Control of the circadian rhythm of activity in the cockroach. I. The role

of the corpora cardiaca, brain and stress . . . . . . . 1 5 3BRADY, JOHN. Control of the circadian rhythm of activity in the cockroach. II. The

role of the sub-eosophageal ganglion and ventral nerve cord . . . . 1 6 5JOSEPHSON, ROBERT K. Conduction and contraction in the column of hydra . . 179DETHIER, V. G. and GELPERIN, A. Hyperphagia in the blowfly . . . . 191

No. 2. O C T O B E R 1967

WALDRON, INGRID. Mechanisms for the production of the motor output pattern inflying locusts . 201

WALDRON, INGRID. Neural mechanism by which controlling inputs influence motoroutput in the flying locust 213

WILLIAMS, BARBARA G. and NAYLOR, E. Spontaneously induced rhythm of tidalperiodicity in laboratory-reared Carcinus 229

TREHERNE, J. E. and MADDRELL, S. H. P. Axonal function and ionic regulation in thecentral nervous system of a phytophagous insect (Carausius morosus) . . 235

HOLWILL, M. E. J. and SILVESTER, N. R. Thermodynamic aspects of flagellar activity 249HOLWILL, M. E. J. and SLEIGH, M. A. Propulsion by hispid flagella . . . 267KAMMER, ANN E. Muscle activity during flight in some large lepidoptera . . 277VOLPE, P., CARFAGNA, M. and Di LORENZO, M. Extraretinal pigmentation and colour

discrimination. I. Choice of colour of substrate during oviposition in Drosophilamelanogaster 297

VIRABHADRACHARI, V., KRISHNAMOORTHY, R. V. and PARVATHESWARARAO, V. Visualpigments in a tropical freshwater fish Etrophu maculatus (Teleostei). . . 307

BRADY, JOHN. The relationship between blood ions and blood-cell density in insects 313

vi ContentsPAGE

HARTLINE, DANIEL K. Impulse identification and axon mapping of the nine neurons inthe cardiac ganglion of the lobster Homarus americanus 327

PICHON, Y. and BOISTEL, J. Current-voltage relations in the isolated giant axon of thecockroach under voltage-damp conditions 343

PICHON, Y. and BOISTEL, J. Microelectrode study of the resting and action potentialsof the cockroach giant axon with special reference to the role played by the nervesheath 357

No. 3. DECEMBER 1967

FLETCHER, G. L., STAINER, I. M. and HOLMES, W. N. Sequential changes in theadenosinetriphosphatase activity and the electrolyte excretory capacity of thenasal glands of the duck {Anas platyrhynchos) during the period of adaptation tohypertonic saline 375

WELLS, M. J. Short-term learning and interocular transfer in detour experiments withoctopuses . . . . . . . . . . . . . 393

WIERSMA, C. A. G. and YAMAGUCHI, T. Integration of visual stimuli by the crayfishcentral nervous system 409

ECKERT, ROGER and SIBAOKA, TAKAO. Bioelectric regulation of tentacle movement in adinoflagellate 433

SIBAOKA, TAKAO and ECKERT, ROGER. An electrophysiological study of the tentacle-regulating potentials in Noctiluca 447

POTTS, W. T. W., FOSTER, M. A., RUDY, P. P. and PARRY HOWELLS, G. Sodium andwater balance in the cichlid teleost, Tilapia mossambica 461

LAGERSPETZ, KARI Y. H. and TALO, ANTTI. Temperature acclimation of the functionalparameters of the giant nerve fibres in Lumbricus terrestris L. I. Conductionvelocity and the duration of the rising and falling phase of action potential 471

TALO, ANTII and LAGERSPETZ, KARI Y. H. Temperature acclimation of the functionalparameters of the giant nerve fibres in Lumbricus terrestris L. II. The refractoryperiod 481

BULL, J. M. and MORRIS, R. Studies on freshwater osmoregulation in the ammocoetelarva of Lampetra planeri (Bloch). I. Ionic constituents, fluid compartments,ionic compartments and water balance 485

FRANCIS, DAVID. On the eyespot of the dinoflagellate, Nematodimum . . . 495JONES, M. D. R., HILL M. and HOPE, A. M. The circadian flight activity of the

mosquito Anopheles gambiae: Phase setting by the light regime . . . 503EVANS, DAVID H. Sodium, chloride and water balance of the intertidal teleost,

Xiphtster atropurpureus. I. Regulation of plasma concentration and body watercontent 513

EVANS, DAVID H. Sodium, chloride and water balance of the intertidal teleost,Xiphtster atropurpureus. II. The role of the kidney and the gut. . . . 5 1 9

EVANS, DAVID H. Sodium, chloride and water balance of the intertidal teleost,Xiphtster atropurpureus. III. The roles of simple diffusion, exchange diffusion,osmosis and active transport . 525

BARNES, R. S. K. The osmotic behaviour of a number of grapsoid crabs with respectto their differential penetration of an estuarine system 535

MEADOWS, P. S. Discrimination, previous experience and substrate selection by theamphipod Corophium 553

WEIS-FOGH, TORKEL. Respiration and tracheal ventilation in locusts and other flyinginsects 561

All communications should be addressed to the Editors,

The Journal of Experimental Biology, Zoological Laboratory,Downing Street, Cambridge, England.

M A N U S C R I P T SAuthors are requested to present their work in as concise a form as possible. MSS. should be type-

written (double spacing) on one side only of the paper, and the pages numbered. Tables and Legendsshould be on separate sheets from the rest of the MS. and should be numbered. The place where theyare to be inserted in the text should be indicated in the margin of the MS. Bibliography should be givenunder the heading of' References' and in the following form: Surname of authors (in alphabetical order),initials, date of publication, title of paper, title of journal (abbreviated according to the World List ofScientific Periodicals), volume and pages of references (first and last). In the text a reference should bequoted by the author's name and date (in brackets), and not by the numerical order of the paper in thelist of references. Every paper must contain a summary of the chief results of the enquiry.

I L L U S T R A T I O N S(i) Line blocks. These should be used whenever possible. Illustrations should be pen drawings in

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Charts and curves can often be drawn to best advantage on graph paper ruled in pale blue. The bluelines, while ensuring accuracy, are easily eliminated by the printer, only the blackened lines that aredesired remaining.

(ii) Text half-tone blocks. These are suitable for illustrations involving brushwork, or in which thedepth of shading is an essential feature. They can be used for such things as oscillograph records andsome photographs can be produced in this way, a good glossy bromide print being required. Illustra-tions should be gummed on white card, grouped and numbered as they are to appear in print. Alllettering should be shown in position on a covering sheet of transparent paper.

(iii) Plates. Plates should be used only for illustrations, such as photomicrographs, in which themost accurate reproduction of fine detail is called for. Plates are expensive and the Editors may requirean author to defray the cost of plates which in their opinion are not essential. The photographs makingup the plate should be gummed on white card, grouped and numbered as they are to appear in print.Exclusive of margin, the plate figures should not cover when reduced, an area greater than 7$ in. inlength x 5 in. in width when ready for reproduction as a single plate, or 74 in. x 11J in. in the case ofdouble plates. All lettering should be shown in position on a covering sheet of transparent paper.Authors are asked not to submit sheets of illustrations which are more than foolscap size; or, if thiscannot be avoided, to include photographic reductions for the convenience of referees.

ABSTRACTSAuthors should submit with their MSS. five copies (typewritten, double spacing) of an abstract

suitable for biological abstracting journals. The abstract will not appear in the Journal of ExperimentalBiology but will be scrutinised by the Editors before being passed for publication. The summary of apaper may serve as an abstract provided that it conforms to the following requirements. The abstractshould outline as briefly as possible the results and the definitive conclusions of the work. Details ofmethods are generally not required. A paper of average length should be abstracted in about 100 wordsand the abstract should never exceed 3 % of the original. Each copy of the abstract should bear the titleof the paper, the name(s) of the author(s) and an address to which applications for offprints may be sent.

P R O O F S H E E T S AND O F F P R I N T S :Authors will receive one set of slip proofs for correction and return to the Editors. A page proof will

also be sent if the slip proof is marked by the author 'Revise'. An allowance often shillings per sheetof sixteen pages will be made for alteration apart from printer's errors. Authors may be charged forany excess over this average. Authors will receive 50 copies of their papers free; additional copies maybe purchased and should be ordered when the proofs are returned to the Editors.

THE SOCIETY FOR EXPERIMENTAL BIOLOGYThe Society holds Conferences four times a year at which the results of experimentalinvestigations are presented and discussed. Enquiries about membership of the Societyshould be addressed to one of the Secretaries:

Dr M. A. SLEIGH, Department of Zoology,The University, Bristol, 8

Dr B. C. LOUGHMAN, Department of Agriculture,Parks Road, Oxford

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