1. Abercrombie, M. and Ambrose, E. J.: Interference Microscope Studies of Cell Contacts in Tissue Culture. Exptl. Cell Res., 15 (2): 832, 1958.

2. Abrams, R. and Bentley, M.: Biosynthesis of Nucleic Acid Purines. I. Formation of Guanine from Adenine Compounds in Bone Marrow Extracts. Arch. Biochem. Biophys., 56: 184, 1955.

3. Abrams, R. and Bentley, M.: Biosynthesis of Nucleic Acid Purines. II. Role of Hypoxanthine and Xanthine Compounds. Arch. Biochem. Biophys., 58: 109, 1955.

4. Albert, A.: Private Communication.

5. Allard, C. L. and de Lamirande, G.: Behavior of Enzymes in Liver Carcinogenesis-Glutamic Dehydrogenase, Glutamic Oxaloacetic Transaminase, and Glutamic-Pyruvic Transaminase. Proc. Amer. Ass. Cancer Res., 50th Annual Meeting, p. 1, April 10-12, 1959; also Private Communication.

6. Allard, C, de Lamirande, G. and Cantero, A.: Enzymes and Cytological Studies in Rat Hepatoma Transplants, Primary Liver Tumors, and in Liver following Azo Dye Feeding or Partial Hepatectomy. Cancer Res., 17: 862, 1957.

7. Allen, M. J., Boyland, E., Dukes, C. E., Horning, E. S. and Watson, J. G.: Cancer of the Urinary Bladder induced in Mice with Metabolites of Aromatic Amines and Tryptophane. Brit. J. Cancer, 11: 212, 1957.

8. Ambrose, E. J. et at.: Vllth Int. Cancer Congress Film Session, London, 1958.

9. Ambrose, E. J. et al.: The Inhibition of Tumor Growth by Enzymes in Tissue Culture. Exptl. Cell Res., In press: 1960.

10. Ambrose, E. J., Easty, D. M. and Jones, P. C. T.: Specific Reactions of Polyelectrolytes with the Surfaces of Normal and Tumour Cells. Brit. J. Cancer, 12: 439, 1958.

11. Ambrose, E. J., James, A. M. and Lowick, J. H. B: Differences between the Electrical Charge carried by Normal and Homologous Tumour Cells. Nature, 177: 576, 1956.

12. Ambrose, E. J., Klein, G. and Purdom, L.: A Correlation Between Electrical Surface Charge and Some Biological Characteristics During the Stepwise Progression of a Mouse Sarcoma. Nature, 181: 1586, 1958.

13. Anfinsen, C. B.: The Limited Digestion of Ribonuclease with Pepsin. J. Biol. Chem., 221: 405, 1956.

14. see Anonymous: Organic Models mirror Enzyme Reactions. Chcm. Eng. News, 4: 40, May, 1959.

15. Ashmore, J., Weber, G. and Landau, B. R.: Isotope Studies on the Pathways of Glucose-6-phosphate Metabolism in the Novikoff Hepatoma. Cancer Res., 18: 974, 1958.

16. Auerbach, V. H. and Waisman, H. A.: Amino-Acid Metabolism of Novikoff Hepatoma. Cancer Res., 18: 543, 1958.

17. Avis, P. G., Bergel, F. and Bray, R. C: Cellular Constituents. The Chemistry of Xanthine Oxidase. I. The Preparation of a Crystalline Xanthine Oxidase from Cow's Milk. J. Chem. Soc, p. 1100, 1955.

18. Avis, P. G., Bergel, F., Bray, R. C, James, D. W. F. and Shooter, K. V.: Cellular Constituents. The Chemistry of Xanthine Oxidase. II. The Homogeneity of Crystalline Metalloflavoprotein Fractions. J. Chem. Soc, p. 1212, 1956; also Avis, P. G., Bergel, F. and Bray, R. C: III. Estimations of the Co-factors and the Catalytic Activities of Enzyme Fractions from Cow's Milk.J. Chem. Soc, p. 1219, 1956.

19. see Avis, P. G., Bergel, F., Bray, R. C. and Shooter, K. V.: Properties of Purified Xanthine Oxidase. In Inorg. Nitrogen Metabolism, 1956, p. 552. Baltimore, The Johns Hopkins Press. Ed. McElroy, W. D. and Glass, B.

20. Baker, B. R.: The Case for Irreversible Inhibitors as Anticancer Agents, an Essay. Cancer Chemotherapy Reports, 1959, 4 August. Cancer Chemotherapy National Service Center, U. S. Department of Health, Education, and Welfare, Public Health Service.

21. Baldini, M. and Sacchetti, C: L'Effet de la Cystine et de la Cysteine sur la Moelle Osseuse Humaine, Cultivee en milieu Carence en Amino-acides. Rev. a"Hematologic, 8: 3, 1953.

22. Baldwin, E.: Dynamic Aspects of Biochemistry, 2nd Ed. Cambridge, University Press, 1952.

23. Barnard, E. A. and Stein, W. D.: The Histidine Residue in the Active Centre of Ribonuclease. Biochem. J., 71: 19P, 1959.

24. Barnard, P. J. and Danielli, J. F.: Tumour Regression obtained by the use of a Nitrogen-Mustard Derivative after Pre-treatment with its Simple Analogue. Biochem. J., 71: 20P, 1959.

25. Bennett, L. L., Jr., Skipper, H. E., Simpson, L., Wheeler, G. P. and Wilcox, W. S.: Searches for Exploitable Biochemical Differences between Normal and Cancer Cells. V. Cellular Conservation of Purines. Cancer Res., 20: 62, 1960.

26. Bergel, F.: Some Chemical Aspects of Abnormal Growth. Lectures on Scientific Basis of Medicine, 1954/55, 4: 54. London, Athlone Press, 1956.

27. Bergel, F. and Bray, R. C: Stabilization of Xanthine Oxidase Activity by Salicylate. Nature, 178: 88, 1956.

28. Bergel, F. and Bray, R. C: The Chemistry of Xanthine Oxidase. 4. The Problems of Enzyme Inactivation and Stabilization. Biochem. J., 73: 182, 1959.

29. Bergel, F., Bray, R. C, Haddow, A. and Lewin, I.: Enzymic Control of Purines by Xanthine Oxidase. Ciba Foundation Symp. on The Chemistry and Biology of Purines, London, J. and A. Churchill, Ltd., 1957, p. 256. Ed. Wolstenholme, G.E.W. and O'Connor, Cecilia M.

30. Bergel, F., Bray, R. C. and Harrap, K. R.: A Model System for Cysteine Desulphydrase Action: Pyridoxal Phosphate-Vanadium. Nature, 181: 1654, 1958.

31. Bergel, F., Darcy, D. A. and Gilbert, D. A.: Private Communication.

32. Bergel, F., Everett, J. L., Martin, J. B. and Webb, J. S.: Cellular Constituents. Major and Minor Metals in Normal and Abnormal Tissues. I. Analysis of Wistar Rat Livers for Copper, Iron, Magnesium, Manganese, Molybdenum and Zinc.J. Pharm. Pharmacol., 9: 522, 1957.

33. Bergel, F. and Harrap, K. R.: Private Communication.

34. Bergel, F., Harrap, K. R. and Scott, A. M.: Private Communication.

35. Bergel, F. and Smith, C: Effects of Ribonuclease on Spontaneous Mammary Tumour in Mice. Private Communication.

36. Bergel, F., Timmis, G. M., Felton, D. G., Osdene, T. S., Avis, P. G. and Bray, R. C: Brit. Emp. Cancer Camp. Ann. Rep., 30: 58, 1952.

37. Bernal, J. D. and Carlisle, C. H.: The Crystal Structure of Ribonuclease. Acta Crystall., 12: 221, 1959; Bernal, J. D., Carlisle, C. H. and Rosemeyer, M. A.: A Preliminary X-ray Study of Crystals of the Complex Ribonuclease-p-chloromercuribenzoate, Acta Crystall., 12: 227, 1959.

38. Bittner, J. J.: Some Enzymes associated with the Genesis of Mammary Cancer in Mice. Cancer Res., 8: 625, 1948; Tumor-inducing Properties of the Mammary Tumor Agent in Young and Adult Mice. Cancer Res., 12: 510, 1952.

39. Bloch-Frankenthal, L. and Weinhouse, S.: Metabolism of Neoplastic Tissue. XII. Effects of Glucose Concentration on Respiration and Glycolysis of Ascites Tumor Cells. Cancer Res., 17: 1082, 1957.

40. Bollum, F. J. and Potter, V. R.: Thymidine Incorporation into Deoxyribonucleic Acid of Rat Liver Homogenates .J. Am. Chem. Soc, 79: 3603, 1957.

41. see Bonser, G. M., Clayson, D. B. and Jull, J. W.: Some Aspects of the Experimental Induction of Tumours of the Bladder. Brit. Med. Bull., 14: 146, 1958.

42. Boyland, E.: The Biochemistry of Cancer of the Bladder. Brit. Med. Bull., 14 (2): 153, 1958.

43. Boyland, E., Gasson, J. E. and Williams, D. C: Enzyme Activity in Relation to Cancer. The Urinary beta-Glucuronidase Activity of Patients suffering from Malignant Disease. Brit. J. Cancer, 11: 120, 1957.

44. Boyland, E., Wallace, D. M. and Williams, D. C: Activity of Enzymes Sulphatase and β-Glucuronidase in Urine, Serum and Bladder Tissue. Brit. J. Cancer, 9: 62, 1955.

45. Boyland, E., Wallace, D. M. and Williams, D. C.: Enzyme Activity in Relation to Cancer. Brit. J. Cancer, 11: 578, 1957.

46. Brachet, J.: Action of Ribonuclease and Ribonucleic Acid on Living Amoebae. Nature, 175: 851, 1955.