Comp. Biochem. Physiol,. 1978. Vol. 59B, p. 270. Pergamon Prexs. Printed in Great Britain

COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY

L. E. Deaton and C. P. Mangum

Tokuichi Hiraiwa

Masahiro Aomine

John D. Bonin and James R. Spotila

Yuko Suzuki

G. Roesijndi

William W. Reynolds and Martha E. Casterlin

L. B. Quetin, T. J. Mickel and James J. Childress

I. R. F. Brown, P. T. White and R. C. Malpas

Frank G. Nordlie

Gary L. Bintz and Holly W. Roesbery

Frank M. Sulzman, Charles A. Fuller and Martin C. Moore-Ede

C. Castex, R. Hoo-Paris, R. Donnio, J. More and B. Ch. J. Sutter

P. R. Laming and G. E. Savage

John F. McCarthy

Birgit Helene Dannevig and Trond Berg

Terence J. Dawson and Jane M. Wolfers

L. W. Haynes and G. A. Kerkut

Short Communication

G. A. Smith, L C. Fitzpatrick and W. D. Pearson

News Item

Contents of Volume 59A Number 3 1978

229 The cardiac response of the ponderous ark clam, Noetia ponderosa, to reduced oxygen levels

231 Histochemical propertie.s of masticatory muscles of growing rat and of matured mammals

239 The mechanism of sugar uptake in Tetrahymena pyri- formis--I. Sugar specificity

245 Temperature tolerance of larval muskellunge (Esox mas- quinongy Mitchill) and F~ hybrids reared under hatchery conditions

249 Abdominal abductor muscle in crayfish: physiological properties and neural control. I--Twitch system

259 Water turnover rates in the megalopa and crab stages I-V of Pinnixa occidentalis

261 Behavioral thermoregulation and diel activity in white sucker (Catostomus commersoni)

263 A method for simultaneously measuring the oxygen con- sumption and activity of pelagic crustaceans

267 Proteins and other nitrogenous constituents in the blood serum of the African elephant, Loxodonta africana

271 The influence of environmental salinity on respiratory oxygen demands in the euryhaline teleost, Ambassis inter- rupta Bleeker

275 Evaporative water loss by control and starved laboratory rats and Spermophilus richardsoni

279 Extent of circadian synchronization by cortisol in the squirrel monkey

285 Determination of insulin levels of the common dormouse (Glis glis) and hedgehog (Erinaceus europaeus) with reference to the rat

291 Flow changes in visceral blood vessels of the chub (Leu- ciscus cephalus) during behavioural arousal

295 The influence of hormonal factors in thermal compensation during the intermolt cycle of the American lobster, Homarus americanus

299 Uptake and proteolysis of denatured human serum albumin by kidneys in chars (Salmo alpinus L.)

305 Metabolism, thermoregulation and torpor in shrew sized marsupials of the genus Plani#ale

311 Facilitation of inhibitory post-synaptic potentials in central neurones of Helix aspersa

325 Metabolic relations to temperatures in the copepods Diap- tomus dorsalis and Mesoo,clops edax from north-central Texas

270