1. Contemporary aspects of evolution

   • J. Maynard Smith

   Reviews 01 August 1983 Pages: 805 - 806

2. Complex-irreversibility and evolution

   • I. Walker

   Reviews 01 August 1983 Pages: 806 - 813

3. Genetic polymorphism: from electrophoresis to DNA sequences

   • F. J. Ayala

   Reviews 01 August 1983 Pages: 813 - 823

4. Mosaic evolution: An integrating principle for the modern synthesis

   • G. L. Stebbins

   Reviews 01 August 1983 Pages: 823 - 834

5. Molecular selforganization and genesis of life

   • H. Kuhn
   • J. Waser

   Reviews 01 August 1983 Pages: 834 - 841

6. Conclusion

   • C. Petit

   Reviews 01 August 1983 Pages: 841 - 844

7. γ-Aminobutyric acid and cardiovascular function

   • F. V. DeFeudis

   Full Papers 01 August 1983 Pages: 845 - 849

8. Effects of CO₂ exposure on distribution of various forms of iron and copper in guinea-pig tissues

   • Karl E. Schaefer
   • Maria C. Linder

   Full Papers 01 August 1983 Pages: 850 - 855

9. Molecular mechanisms in the action of imipramine

   • E. Costa
   • D. M. Chuang
   • O. Gandolfi

   Mini-Review 01 August 1983 Pages: 855 - 858

10. Pheromone-induced aggregation of ixodid ticks before host contact

    • M. Leahy
    • A. Kovacic
    • L. Schulze

    Short Communications 01 August 1983 Pages: 859 - 860

11. Influence of a meal on skin temperatures estimated from quantitative IR-thermography

    • M. J. Dauncey
    • C. Haseler
    • G. Parr

    Short Communications 01 August 1983 Pages: 860 - 862

12. Desensitization to histamine in the absence of external Ca⁺⁺ in the guinea-pig taenia caecum

    • M. Uchida
    • H. Hirano

    Short Communications 01 August 1983 Pages: 862 - 863

13. Hemopoiesis in pregnant beagles following low-dose total-body irradiation and surgery

    • S. R. Weinberg
    • A. C. Bakarich
    • T. J. MacVittie

    Short Communications 01 August 1983 Pages: 864 - 866

14. Change in the activation rate of voltage-dependent Ba²⁺ current by conditioning pre-depolarization

    • J. W. Deitmer

    Short Communications 01 August 1983 Pages: 866 - 867

15. Compound eyes as the photoperiodic receptors in the bean bug

    • H. Numata
    • T. Hidaka

    Short Communications 01 August 1983 Pages: 868 - 869

16. Neural connections between antrum and duodenum

    • K. Kraglund
    • H. D. Schrøder
    • H. Stødkilde-Jørgensen

    Short Communications 01 August 1983 Pages: 869 - 870

17. Plasma catecholamines in children

    • G. Planz
    • J. Bieber
    • G. v. Bernuth

    Short Communications 01 August 1983 Pages: 871 - 871

18. Mg²⁺-HCO ₃ ⁻ -ATPase and carbonic anhydrase in rat intestinal mucosa

    • S. Suzuki
    • N. Ozaki

    Short Communications 01 August 1983 Pages: 872 - 873

19. Contribution to knowledge of the biosynthesis of cyclosporin A

    • H. Kobel
    • H. R. Loosli
    • R. Voges

    Short Communications 01 August 1983 Pages: 873 - 876

20. Immunocytological study of the distribution of C-cells calcitonin in the thyroid gland of the normal adult gerbil

    • D. Guilloteau
    • F. Fetissof
    • J-C. Besnard

    Short Communications 01 August 1983 Pages: 876 - 878

21. Selective staining of β-esterase ofDrosophila

    • A. A. Karavanov
    • L. I. Korochkin

    Short Communications 01 August 1983 Pages: 878 - 880

22. Time course study of the changes in blood glutathione induced by acute ethanol intoxication in the rat

    • V. Fernández
    • N. Fernández
    • L. A. Videla

    Short Communications 01 August 1983 Pages: 880 - 882

23. Subcellular distribution of mannophosphoinositides inMycobacterium smegmatis during growth

    • N. Penumarti
    • G. K. Khuller

    Short Communications 01 August 1983 Pages: 882 - 884

24. The effect of diet on esterase band pattern inMyzus persicae (Sulzer) — a disclaimer

    • T. C. R. White

    Short Communications 01 August 1983 Pages: 884 - 885

25. Purification of diphtheria toxin by chromatography on Cibacron Blue-Sepharose

    • G. Antoni
    • M. Bigio
    • P. Neri

    Short Communications 01 August 1983 Pages: 885 - 886

26. A histofluorescent procedure for identifying marijuana cannabinoids

    • A. Bruni
    • I. Barni Comparini
    • E. Menziani Andreoli

    Short Communications 01 August 1983 Pages: 886 - 888

27. Heme oxygenase activity is decreased by D-penicillamine in neonates

    • G. Oroszlán
    • L. Lakatos
    • L. Karmazsin

    Short Communications 01 August 1983 Pages: 888 - 889

28. A new anti-mycotic drug tioxaprofen and its uncoupling effect on isolated mitochondria

    • K. Kawai
    • R. Watanabe
    • H. Fujimura

    Short Communications 01 August 1983 Pages: 889 - 890

29. Low doses of 2,4,5-trichlorophenoxyacetic acid are behaviorally teratogenic to rats

    • M. A. Crampton
    • L. J. Rogers

    Short Communications 01 August 1983 Pages: 891 - 892

30. Extracellular calcium ions modify the effects ofAnemonia sulcata toxin (ATX II) in guinea-pig papillary muscles

    • U. Ravens

    Short Communications 01 August 1983 Pages: 893 - 894

31. Is prostacyclin subserving a vasodilator effect of methoxamine involving alpha adrenoreceptors?

    • E. Borda
    • L. Sterin-Borda
    • A. L. Gimeno

    Short Communications 01 August 1983 Pages: 894 - 896

32. The effect of propylthiouracil on glutathione S-transferase activity of rat spleen in vitro and in vivo

    • K. Kariya
    • E. Lee
    • T. Matsue

    Short Communications 01 August 1983 Pages: 896 - 898

33. A herbicidal principle fromCaesulia axillaris L., a weed of paddy fields

    • J. C. Srivastava
    • R. A. K. Srivastava
    • S. N. Mathur

    Short Communications 01 August 1983 Pages: 898 - 899

34. Fibrin and collagen deposition and fibroblasts proliferation in granuloma of murine leprosy. Comparison of two mouse strains with different immune reactions

    • M. Satoh
    • S. Izaki
    • M. Izaki

    Short Communications 01 August 1983 Pages: 899 - 902

35. Serodiagnosis of viral hepatitis A: Rise in antibody titre and evaluation of three methods for detecting early and late antibodies

    • C. Girardet
    • R. Peitrequin
    • P. C. Frei

    Short Communications 01 August 1983 Pages: 902 - 904

36. Experimental ancylostomiasis in chickens: Effect of various dose of infectiveAncylostoma caninum larvae on their migration and distribution

    • R. K. Agarwal
    • S. M. Agarwal

    Short Communications 01 August 1983 Pages: 905 - 906

37. Transmembrane potential of J774.2 mouse macrophage cells measured by microelectrode and ion distribution methods

    • D. J. McCaig
    • R. D. Berlin

    Short Communications 01 August 1983 Pages: 906 - 907

38. Purification of porcine granulosa cells by continuous Percoll gradient

    • J. Kolena
    • A. Kiss
    • C. P. Channing

    Short Communications 01 August 1983 Pages: 908 - 909

39. A new strain of rat with an inherited cataract

    • N. Ihara

    Short Communications 01 August 1983 Pages: 909 - 911

40. Nucleolar organizer regions inBiomphalaria andBulinus snails

    • M. A. Goldman
    • P. T. LoVerde
    • C. S. Richards

    Short Communications 01 August 1983 Pages: 911 - 913

41. Continued in vitro and in vivo release of an antitumor drug from albumin microspheres

    • S. Fujimoto
    • F. Endoh
    • H. Suzuki

    Short Communications 01 August 1983 Pages: 913 - 916

42. Density gradient centrifugation of tumor cells from needle biopsies and their respective source tumors: a comparison of density distributions

    • D. J. Grdina
    • G. Zin

    Short Communications 01 August 1983 Pages: 916 - 917

43. Electrophysiological evidence of nervous involvement in the control of the prothoracic gland inPeriplaneta americana

    • K. Richter
    • M. Gersch

    Short Communications 01 August 1983 Pages: 917 - 918

44. Precocene II has no anti-juvenile hormone effects in adult honey bees

    • P. Fluri

    Short Communications 01 August 1983 Pages: 919 - 920

45. Hyperglycemic effect in the rabbit induced by ACTH_4–10

    • R. Drouhault
    • A. M. Courtes
    • B. Dufy

    Short Communications 01 August 1983 Pages: 920 - 922

46. Different neuropathological effects of intrahippocampal injections of kainic acid and tetanus toxin

    • J. Kessler
    • H. J. Markowitsch

    Short Communications 01 August 1983 Pages: 922 - 924

47. Investigation ofAeromonas isolated from water; a serological study using Ouchterlony and immunoelectrophoresis techniques

    • R. Peduzzi
    • P. A. de Meuron
    • E. Grimaldi

    Short Communications 01 August 1983 Pages: 924 - 926

48. A new method for detection of anti-zona activity in human sera using latex agglutination reaction

    • Y. Noda
    • I. Yamada
    • E. Watanabe

    Short Communications 01 August 1983 Pages: 926 - 928

49. Bioluminescence assay of calcium with a liquid scintillation counter

    • C. Oveby
    • R. Kant
    • S. Batra

    Short Communications 01 August 1983 Pages: 928 - 930

50. In memoriam

    • Hans Mislin
    • Werner P. Koella

    Announcement 01 August 1983 Pages: 930 - 930