biochemi and ecology Executive Editors: Papers in a recent issue included: Zoological Aspects PLANTS E Schoffeniels, Laboratoire de Biochimie, Neutral and Amino Sugars from the Cell Walls Universitede Liege, place Delcour 16, 4000 of Oomycetes, B Vaziri-Tehrani & M W Dick Liege, Belgium An Approach to Chemotaxonomy of the Botanical Aspects Asarum Subgenus Heterotropa, N Hayashi etal. T Swain, Biological Science Center, Boston The Identification of Poinsettia Cultivars by University, 2 Cummington Street, Boston, HPLC Analysis of their Flavonol Content, MA 02215, USA R N Stewart ef al. Aims and Scope Essai Chimiosystematique sur la Tribu des Lotees, M Jay et al. * BIOCHEMICAL SYSTEMATICS AND Quinolizidine Alkaloids as Systematic Markers ECOLOGY is devoted to the publication of of the Papilionoideae, A Salatino & original articles and occasional invited reviews O R Gottlieb. on the application of biochemistry and Flavonoids of Sullivantia: Taxonomic Implica- chemistry to systematic problems in biology. tions at the Generic Level within the All classes of organisms susceptible to Saxifraginae, D E Soltis. chemical or biochemical study are covered — from bacteria to higher plants and animals, ANIMALS including fossil forms. Influence de la Temperature sur quelques Activites Enzymatiques chez Paleamon serratus, Any type of chemical or biochemical J Trellu & H J Ceccaldi. information may be used in demonstrating Acides Amines de Microsporidies Parasites de their phyletic or other interrelationships, Crustaces Decapodes Marins, C P Vivares ef al. including the elucidation of biosynthetic path- How are Feathers digested by Raptors?, P ways, feedback control, hybridization and Leprince et al. other techniques of molecular biology and the Effect of Ambient Temperature on Perinatal distribution of discrete chemical compounds. Variations of Cyclic AMP and Cyclic GMP in Systematics is interpreted in the widest Rat Brown Adipose Tissue, R Bertin etal. sense to include studies on variation in popula- tions, classification of living organisms, inter- Information on submission of manuscripts may specific relationships and phylogenetic affinities be obtained from either of the Executive of major taxa. Editors at the addresses above. Subscription Information FREE SPECIMEN COPY Published quarterly AVAILABLE ON REQUEST Annual subscription (1981 )USS 95.00 £43.18 Prices are subject to change without notice. Two-year rate (1981/82) USS 180.50 £82.04 Sterling prices apply to customers in the UK and Eire. Prices include postage and insurance. Headington Hill Hall, Oxford OX3 0BW, UK Pergamon Press Fairview Park, Elmsford New York 10523, USA Downloaded from https://www.cambridge.org/core. IP address: 170.106.202.8, on 28 Sep 2021 at 15:48:56, subject to the Cambridge Core terms of use, available at https://www.cambridge.org/core/terms. https://doi.org/10.1017/S174275840000059X TOXICON An International Journal Devoted to the Exchange of Knowledge on the Poisons Derived from Animals, Plants and Microorganisms Official Journal of the International Society on Toxicology Editor: Philip Rosenberg, University of A selection of recent papers Connecticut, School of Pharmacy, Storrs, Research Papers Connecticut, 06268, USA Characterization of a protein toxin from dried specimens of the garden tiger moth Assistant Editor: Gerhard Habermehl, Technische Hochschule Darmstadt (Arctia caja L.), T H Hsiao et al. Pharmacokinetics of l^I-labelled venom Aims and Scope from the scorpion Androctonus amoreuxi, Toxicon provides a first-class medium for Aud. and Sav., M Ismail et al. the publication of the following extensive Cardiohepatic and gross pathological range of material: changes in rhesus monkeys after * Papers on the chemical, pharmacologi- intravenous injection of purified cholera cal, zootoxicological and immunological enterotoxin, C T Liu et al properties of natural poisons A hemolytic principle associated with the * Clinical observations on poisoning red-tide di no flagellate Gonyaulax monilata, where a new therapeutic principle has G P Clemons et al. been proposed or a decidedly superior Cardiovascular effects of venom from the clinical result has been obtained scorpion Buthus occitanus, Amoreux, *Material on the use of toxins in M Ismail et al. studying biological processes and on subjects related to venom-antivenin Short Communications problems Presynaptic effects of midgut extract from ^Occasional review articles on problems larvae of the oriental hornet (Vespa orientalis), N Dascal & J S Ishay. related to toxinology In addition, Toxicon Purification and characterization of two mammalian toxins from the venom of the *Abstracts the current literature on Mexican scorpion Centruroides noxius venoms, antivenins and other poisons Hoffman, MAR Dent et al. and antipoisons Relation between serum creatine * Encourages the exchange of ideas phosphokinase activity and the amount of through short communications, letters Habu (Trimeresurus flavoviridis) snake to the Editor, and reports on the venom injected in thigh muscle in rabbits, activities of the International Society F Nakada et al. on Toxinology Subscription Information Published bi-monthly Annual subscription (1981) US$160.00 £ 72.72 Two-year rate (1981/82) US$304.00 £138.18 FREE SPECIMEN COPY GLADLY SENT ON REQUEST £ o Prices are subject to change without notice. Prices include ™ postage and insurance. Sterling prices apply to customers co in UK and Eire only. § Headington Hill Hall,Oxford 0X3 0BW,UK Pergamon Press Maxwell House, Fairview Park,New York 10523,USA Downloaded from https://www.cambridge.org/core. IP address: 170.106.202.8, on 28 Sep 2021 at 15:48:56, subject to the Cambridge Core terms of use, available at https://www.cambridge.org/core/terms. https://doi.org/10.1017/S174275840000059X The International Journal of Electron Microscopy, Electron Probe Micro-Analysis, Image Processing and Associated Techniques Editor-in-Chief: R W Home, John Innes Institute, Norwich 'Coverage of research in medicine, biology and the materials and physical sciences * High quality reproduction of micrographs *Free specimen copy available on request MICRON is an interdisciplinary forum for the collation of all work relating to the application, practice or theory of electron microscopy, electron probe micro-analysis, image processing and related techniques. Electron microscopy and optics have been considerably extended in range by such develop- ments as microprobe analysis, image analysis and computer processing and image generation methods, and it is likely that the extraction of quantitative information from both biological and non-biological specimens will depend more on such new techniques than on improvements to existing apparatus. The new style and presenta- tion of MICRON reflects the rapid advances being made in the field. To maintain this invaluable service, the Editor ensures the rapid publication of submitted manuscripts recommended by the Consultative Editorial Board, and invites regular review articles covering current research in the field. Subscription Information Published quarterly Annual subscription (1981) US$140.00 £ 63.63 Two-year rate (1981/82) USS266.00 £120.90 FREE SPECIMEN COPY AVAILABLE ON REQUEST. Prices subject to change without notice. Prices include postage and insurance. Sterling prices applicable to UK and Eire customers Advertisers Equipment manufacturers are encouraged to feature their products in this journal. For details contact the Advertising Manager. o 00 Headington Hill Hall, Oxford OX3 0BW, UK Pergamon Press Maxwell House, Fairview Park, New York 10523, USA Downloaded from https://www.cambridge.org/core. IP address: 170.106.202.8, on 28 Sep 2021 at 15:48:56, subject to the Cambridge Core terms of use, available at https://www.cambridge.org/core/terms. https://doi.org/10.1017/S174275840000059X Now Published by Pergamon Press on behalf of the Royal Swedish Academy of Sciences International Journal for Zoology Now in its 62nd year of publication Chief Editor: Ragnar Olsson, ACTA ZQOLOGICA, The thyrotropic cell in the Atlantic salmon, Salmo PO Box 6801, S-11386, Stockholm, Sweden salar, G Fridberg, K Lindahl and B Ekengren Executive Editor: Kaj Holmberg, Stockholm Biology of the wild rabbit, Oryctolagus cuniculus, Supported by an International Advisory Council in southern Sweden.IV.Leydig cell activity and seasonal development of two male accessory organs Acta Zoologica is an International Journal for of reproduction, M Dahlba'ck and M Andersson Zoology, publishing original research reports on all Factors associated with the seasonal variation in the aspects of animal structure. It includes articles on incidence of pituitary cysts in nine-spined functional cytology, histology and gross morphology sticklebacks, Pungitius pungitius L , M Benjamin as well as papers describing techniques of use in zoological investigation. An Invitation to Contribute A Selection of Forthcoming Papers The Chief Editor will be pleased to receive The ultrastructure of special epidermal organs in contributions from authors for editorial Psychodidae (Diptera). I. Appendages on the consideration. Manuscripts and enquiries should be mesothorax of male Ulomyia fuliginosa (Meigen), sent to Ragnar Olsson at the address given above. M Elger Authors are advised that articles of purely local Digitif orm sensilla on the maxillar palp of interest or of a descriptive or systematic character Coleoptera. III. Fine structure in Tenebrio molitor L will not generally be considered. and Dermestes maculatus De Geer, K Honomichl