1. Tritium analyses of groundwater from the Gort Lowland of Western Ireland

   • R. Bowen
   • P. W. Williams

   Specialia Pages: 497 - 498

2. Phosphatidyl-N-(2 hydroxyethyl)-alanine synthesis of distearoyl L-α-glycerylphosphoryl-N-(2 hydroxyethyl)-alanine

   • S. K. Pavanaram
   • H. Flehmig

   OriginalPaper Pages: 498 - 499

3. Antibiotics from higher plants.Thalictrum rugosum. Thalrugosamine, a newBisbenzylisoquinoline alkaloid active vsMycobacterium smegmatis

   • L. A. Mitscher
   • Wu-nan Wu
   • J. L. Beal

   OriginalPaper Pages: 500 - 500

4. Isolation of maridomycins and structure of maridomycin II

   • M. Muroi
   • M. Izawa
   • T. Kishi

   OriginalPaper Pages: 501 - 502

5. Effect of diurnal rhythm and food withdrawal on serum lipid levels in the rat

   • M. N. Cayen
   • M. L. Givner
   • M. Kraml

   OriginalPaper Pages: 502 - 503

6. The cholinesterase activity of myoneural junctions from frog twitch and tonic muscles

   • J. Heaton
   • G. A. Buckley
   • R. H. Evans

   OriginalPaper Pages: 503 - 504

7. Reversal by lecithin of the amobarbital-induced inhibition of microsomal (Na+K)-activated ATPase

   • C. J. Limas

   OriginalPaper Pages: 505 - 505

8. Endogenous recovery from colchicine-induced inhibition of growth

   • M. Fragata

   OriginalPaper Pages: 506 - 507

9. Blood chemistry ofLamellidens corrianus

   • A. S. Narain

   OriginalPaper Pages: 507 - 508

10. The effect of alloxan diabetes on skin collagen metabolism

    • P. Yep
    • S. Gullander
    • R. B. Rucker

    OriginalPaper Pages: 508 - 509

11. Force generation in glycerinated insect-flight muscles without ATP

    • H. J. Kuhn
    • H. Schröder
    • J. C. Rüegg

    OriginalPaper Pages: 510 - 511

12. Electron microscope and optical diffraction studies on glycerol-extracted insect flight muscle fibres relaxed by pyrophosphate

    • G. Beinbrech
    • H. J. Kuhn
    • J. C. Rüegg

    OriginalPaper Pages: 511 - 513

13. 3′–5′-cAMP and lysosome membrane labilization

    • S. Imre

    OriginalPaper Pages: 513 - 514

14. Lack of major cytoplasmic protein contamination of rat liver nuclear chromatin

    • J. A. Wilhelm
    • Carlleen M. Groves
    • L. S. Hnilica

    OriginalPaper Pages: 514 - 516

15. Localisation des glycosyl-transférases dans les membranes endoplasmiques des splénocytes de rat

    • M. Richard
    • P. Louisot

    OriginalPaper Pages: 516 - 517

16. Guaiacol-O-methyltransferase: A mammalian enzyme capable of forming di-O-methyl catecholamine derivatives

    • A. J. Friedhoff
    • J. W. Schweitzer
    • Elnora van Winkle

    OriginalPaper Pages: 517 - 519

17. The effect of Emetine on macromolecular synthesis in synchronizedTetrahymena pyriformis

    • T. M. Cashman
    • K. A. Conklin
    • S. C. Chou

    OriginalPaper Pages: 520 - 521

18. Ionically induced volume changes of the smooth muscle of the guinea-pigTaenia coli

    • A. F. Brading
    • T. Tomita

    OriginalPaper Pages: 521 - 523

19. Neural correlates of taste sensation quality

    • M. Ichioka

    OriginalPaper Pages: 523 - 524

20. Effect of aluminium phosphate gel on whole-body retention of simultaneously administered²²⁶Ra,⁸⁵Sr and⁴⁷Ca in mice

    • D. Keslev
    • S. Van Puymbroeck
    • O. Van der Borght

    OriginalPaper Pages: 524 - 525

21. Development of human foetal inotropic responses to catecholamines

    • D. J. Coltart
    • B. A. Spilker

    OriginalPaper Pages: 525 - 526

22. A nonlinear property of the renal autoregulation

    • Th. Kenner
    • K. Ono
    • J. Rubenstein

    OriginalPaper Pages: 527 - 528

23. Humoral autoregulation of blood flow and blood pressure

    • Th. Kenner
    • K. Ono

    OriginalPaper Pages: 528 - 530

24. Correlation of ammonia liberation and calcium deposition by the avian egg and blood ammonia levels in the laying hen

    • G. Reddy
    • J. W. Campbell

    OriginalPaper Pages: 530 - 532

25. Importance of the anti-serotonin effect for mounting behaviour in rats

    • O. Benkert
    • T. Eversmann

    OriginalPaper Pages: 532 - 533

26. Dissociation of vertical and horizontal components of activity in rats treated with lithium chloride

    • F. N. Johnson

    OriginalPaper Pages: 533 - 535

27. Oxidation of cyclophosphamide by means of KMnO₄

    • K. Norpoth
    • J. Knippschild
    • H. M. Rauen

    OriginalPaper Pages: 536 - 537

28. Choline acetyltransferase and acetylcholinesterase in spinal motor neurons cultured in vitro

    • S. U. Kim

    OriginalPaper Pages: 537 - 538

29. Studies on the murine L-4946 ascitic leukemia in Swiss albino mice

    • O. M. Rennert

    OriginalPaper Pages: 539 - 540

30. Sialidase of transitional epithelium of sheep urinary tract

    • A. Candiotti
    • N. Ibañez
    • B. Monis

    OriginalPaper Pages: 541 - 542

31. Aggressive behaviour induced by marihuana compounds and amphetamine in rats previously made dependent on morphine

    • E. A. Carlini
    • C. Gonzalez

    OriginalPaper Pages: 542 - 544

32. The L-4946 leukemia in the CF¹ mouse

    • G. B. Humphrey

    OriginalPaper Pages: 544 - 545

33. The decrease in the concentration of organic material in the course of formation of the enamel matrix

    • G. Blumen
    • J. Merzel

    OriginalPaper Pages: 545 - 548

34. Immunohistochemical and ultrastructural detection of the secretin cell in the pig intestinal mucosa

    • E. Solcia
    • C. Capella
    • G. Bussolati

    OriginalPaper Pages: 549 - 550

35. Histochemistry of glutamic-oxaloacetic transaminase in mouse liver during MHV-3 infection

    • F. Paradisi
    • L. Graziano
    • G. Maio

    OriginalPaper Pages: 551 - 552

36. Protection against gastrointestinal effects of whole-body X-irradiation by a bile acid sequestrant in rats

    • T. M. Parkinson
    • N. A. Drake

    OriginalPaper Pages: 553 - 554

37. Characteristics of the nucleolini observed under the photon microscope

    • A. Bolognari
    • M. Caminiti

    OriginalPaper Pages: 554 - 556

38. Morphological basis of follicle cells - oocyte interaction in normal pupae and isolated pupal abdomina ofGalleria mellonella L.

    • A. Przełecka
    • A. B. Dutkowski

    OriginalPaper Pages: 556 - 558

39. Reduced foetal calcium without skeletal malformations in rats following high maternal doses of a strontium salt

    • A. B. G. Lansdown
    • R. C. Longland
    • P. Grasso

    OriginalPaper Pages: 558 - 560

40. Esterases in the hearts, lungs and livers of human foetuses before mid-term

    • I. M. Taylor

    OriginalPaper Pages: 560 - 561

41. Overcoming of endotoxin - mediated immunosuppression byBordetella pertussis

    • H. Finger
    • I. Fölmer
    • M. Henseling

    OriginalPaper Pages: 562 - 563

42. Influence of histamine or histamine-liberator (48/80) on the ADP-induced platelet aggregation

    • D. Bottecchia

    BriefCommunication Pages: 564 - 565

43. Hot-cold hemolysis: The role of positively charged membrane phospholipids

    • J. W. Meduski
    • P. Hochstein

    OriginalPaper Pages: 565 - 566

44. Antigen-induced mitosis in liver macrophages of immunized mice

    • D. G. More
    • D. S. Nelson

    OriginalPaper Pages: 566 - 567

45. Specific enhancement of the cytotoxic titre with regard to complement source and cytotoxicity test systems

    • H. -D. Adolphs

    OriginalPaper Pages: 567 - 569

46. Anti-lymphocyte serum and suppression of interferon production

    • Lucy Treagan

    OriginalPaper Pages: 569 - 569

47. Hemoglobin in immature erythrocyte mitochondrion-like organelles

    • A. Brunner Jr.
    • A. R. Schwantes
    • W. Beçak

    OriginalPaper Pages: 569 - 571

48. Normal macrophage migration inhibition in dexamethasone-treated guinea-pigs

    • M. D. Lockshin

    OriginalPaper Pages: 571 - 572

49. Effect of platelet membranes on the electrophoretic pattern of 6-phosphogluconic dehydrogenase from platelet lysates

    • F. Ajmar
    • G. F. Gaetani
    • E. Salvidio

    OriginalPaper Pages: 572 - 574

50. Effects of 2-Br-α-ergocryptine on plasma prolactin level and milk yield in cows

    • H. Karg
    • D. Schams
    • V. Reinhardt

    OriginalPaper Pages: 574 - 576