1. The coordinating properties ofd-biotin

   • Helmut Sigel

   Generalia Pages: 789 - 798

2. A new solid-phase synthesis of thymopoietin II by a mild procedure

   • R. Colombo

   Specialia Pages: 798 - 800

3. Localization of sucrase activity in the cocoon ofBombyx mori

   • V. Ramakrishnan
   • S. F. D'Souza

   Specialia Pages: 800 - 801

4. The role of the cysteinyl and one of the tryptophyl residues in the neurotoxic action of suberitine

   • L. Cariello
   • B. Salvato
   • G. Jori

   Specialia Pages: 801 - 803

5. Can L-dopa be a precursor of m-octopamine in the cephalic ganglions of the locustLocusta migratoria L?

   • J. C. David
   • J. F. Coulon
   • D. Vinson

   Specialia Pages: 804 - 805

6. Studies on the specificity of the colorimetric assay for sulfamethoxazole

   • P. Heizmann
   • P. Haefelfinger

   Specialia Pages: 806 - 807

7. The serum levels of unbound bilirubin that induce changes in some brain mitochondrial reactions in newborn guinea-pigs

   • Maria A. S. Almeida
   • L. Rezende Jr

   Specialia Pages: 807 - 809

8. A sensitive and inexpensive high-performance liquid chromatographic assay for tyrosine hydroxylase

   • T. Kato
   • S. Horiuchi
   • T. Nagatsu

   Specialia Pages: 809 - 811

9. Semisynthesis and biological properties of the [B24-leucine]-, [B25-leucine]- and [B24-leucine, B25-leucine]-analogues of human insulin

   • K. Inouye
   • K. Watanabe
   • Y. Shigeta

   Specialia Pages: 811 - 813

10. Inhibition of arginase in sheep brain homogenates by some L-amino acids

    • P. U. M. Reddy
    • J. V. Ramana Rao

    Specialia Pages: 814 - 814

11. Thermodynamics of adsorption and desorption of hydrogen sulfide in micropores of activated carbon

    • K. Boki
    • S. Tanada
    • K. Sakaguchi

    Specialia Pages: 815 - 816

12. o-Aminoacetophenone: Identification in a primitive fungus-growing ant (Mycocepurus goeldii)

    • M. S. Blum
    • J. M. Brand
    • E. Amante

    Specialia Pages: 816 - 817

13. The effect of diphosphonates on periosteal and bone cells in culture

    • R. Felix
    • H. Fleisch

    Specialia Pages: 817 - 819

14. Multiple sex-linked reciprocal translocations in a termite from Jamaica

    • P. Luykx
    • R. M. Syren

    Specialia Pages: 819 - 820

15. A 41, XYY mouse

    • R. K. Das
    • R. N. Kar

    Specialia Pages: 821 - 822

16. The differential banding pattern produced by Actinomycin-D/Acridine-Orange counterstaining in metaphase chromosomes ofDrosophila melanogaster

    • R. Mezzanotte
    • L. Ferrucci

    Specialia Pages: 822 - 823

17. Infecundity and dominant lethal mutations induced inMusca domestica L. by sodium azide (NaN₃)

    • J. N. Thakur
    • S. K. Mann

    Specialia Pages: 824 - 825

18. Complete replacement of serum in primary cultures of chick embryo brain cells by growth-promoting alpha-globulin

    • M. Baudyšová
    • J. Michl

    Specialia Pages: 826 - 828

19. Flow microcalorimetric bioassay of polyene antibiotics: Interaction with growingSaccharomyces cerevisiae

    • A. E. Beezer
    • B. Z. Chowdhry

    Specialia Pages: 828 - 831

20. Influence of adult food on the reproduction of virgin females of anAcanthoscelides obtectus strain originating from Colombian altiplanos

    • J. Huignard
    • B. Leroi

    Specialia Pages: 831 - 833

21. Sproostasis between phylloplane microfungi and a foliar pathogen

    • R. K. Upadhyay

    Specialia Pages: 833 - 835

22. Electrical impedance of daminozide- and calcium-treated McIntosh apples

    • E. C. Lougheed
    • S. R. Miller
    • R. A. Cline

    Specialia Pages: 835 - 837

23. Persistence of infradian body weight cycles in castrated dormice (Glis glis)

    • J. E. Joy

    Specialia Pages: 837 - 839

24. Evidence for a constant number of available sweet receptor sites at threshold concentrations of sugars

    • G. G. Birch
    • S. L. Munton

    Specialia Pages: 839 - 840

25. A study on the parameters of digestion inPeriplaneta americana L

    • O. P. Agrawal

    Specialia Pages: 840 - 842

26. Simultaneous syntheses of cytoplasmic and chloroplastic ribosomal RNA during the cell cycle ofDunaliella

    • F. Marano
    • A. C. Dazy

    Specialia Pages: 842 - 843

27. Effects of Avermectin Bla on the motility of various parasitic helminths

    • M. Sano
    • M. Terada
    • H. Kino

    Specialia Pages: 844 - 846

28. High magnesium content ofEscherichia coli B

    • M. L. J. Moncany
    • E. Kellenberger

    Specialia Pages: 846 - 847

29. Midbrain regions involved in call production of Japanese quail

    • S. E. Armitage
    • T. J. Seller

    Specialia Pages: 847 - 848

30. Tritiated water (HTO) and inulin spaces in isolated skeletal and cardiac muscles: influence of contractile activity

    • V. Cappelli
    • C. Poggesi
    • C. Reggiani

    Specialia Pages: 849 - 850

31. A new neurosecretory system in fish, located in the gill region

    • C. B. L. Srivastava
    • A. Gopesh
    • M. Singh

    Specialia Pages: 850 - 851

32. Effects of haloperidol, methylergometrine and phentolamine on the frog ERG

    • P. Kupenova
    • S. Belcheva

    Specialia Pages: 852 - 854

33. Changes in the lipoproteins of rabbits on a high-fat, cholesterol-free diet; preventive action of metformin

    • C. Lacombe
    • M. Nibbelink

    Specialia Pages: 854 - 855

34. Biochemical efficiency and intrinsic shortening speed in selected vertebrate fast and slow muscles

    • L. O. Nwoye
    • G. Goldspink

    Specialia Pages: 856 - 857

35. Summing properties of the surround response mechanism of cat retinal ganglion cells

    • W. G. Christen
    • H. I. Cohen
    • R. W. Winters

    Specialia Pages: 857 - 859

36. Dantrolene and the effect of temperature on the spontaneous release of transmitter at the frog neuromuscular junction

    • S. J. Publicover
    • C. J. Duncan

    Specialia Pages: 859 - 860

37. Catecholamines in bovine semen

    • P. E. Lindahl
    • P. Sjöblom
    • O. Tottmar

    Specialia Pages: 860 - 861

38. Effects of Ca²⁺ and Mg²⁺ on motility of sea urchin spermatozoa

    • F. Iwasa
    • H. Shimizu
    • H. Mohri

    Specialia Pages: 861 - 862

39. Effects on prostaglandins F_2α, I₂, and indomethacin on isolated coronary arteries from healthy and alloxandiabetic dogs

    • I. Palik
    • P. Hadházy
    • G. Pogátsa

    Specialia Pages: 863 - 864

40. Galactose and leucine transport in the developing rat small intestine

    • Juana M. Planas
    • M. Moretó
    • J. Bolufer

    Specialia Pages: 864 - 865

41. Action of histamine and vasoactive intestinal peptide (VIP), on cyclic AMP in gastric glands isolated from human fetal stomach

    • C. Gespach
    • C. Dupont
    • G. Rosselin

    Specialia Pages: 866 - 867

42. Evaporative resistance of pulmonary surfactant films

    • C. Meban

    Specialia Pages: 867 - 868

43. Autoradiographic analysis of alanine uptake by newborn pig intestine

    • M. W. Smith

    Specialia Pages: 868 - 870

44. Early ultrastructural changes in the cerebral cortex of albino rats subjected to 3-aminopyridine seizures

    • A. Mihály

    Specialia Pages: 870 - 871

45. The localization of kallikrein in the dog and guinea-pig submandibular glands

    • M. Uddin
    • D. W. Tyler

    Specialia Pages: 872 - 878

46. Circadian and seasonal rhythm in stimulation-produced analgesia

    • W. R. Buckett

    Specialia Pages: 878 - 879

47. Effects of centrophenoxine, piracetam and hydergine on rat brain lipid peroxidation

    • D. D. Jamieson
    • K. M. Taylor

    Specialia Pages: 879 - 881

48. Naloxone reduces abdominal muscle tone in mice and rats

    • Th. Duka
    • E. P. Bonetti
    • M. Wüster

    Specialia Pages: 881 - 882

49. An investigation of the interaction between isoniazid and the contraceptive steroid norethindrone in vivo

    • H. Watanabe
    • J. A. Menzies
    • J. C. K. Loo

    Specialia Pages: 883 - 884

50. Preparation and oxygen binding properties of soluble covalent hemoglobin-dextran conjugates

    • F. Bonneaux
    • P. Labrude
    • E. Dellacherie

    Specialia Pages: 884 - 886