440 Histon and its Preparation [April 



10. Huiskamp, W. Ueber die Eiweisskörper der Thymus. Ibid., igoi, 



xxxii, p. 145. Review of Bang's and Malengrau's claims, and 

 introduction of calcium chlorid as a means of separating nucleo- 

 histon from nucleoprotein. Maintains that nucleohiston is true 

 nucleoprotein and that it yields nuclein, not nucleic acid, with re- 

 moval of histon. 



11. . Beiträge zur Kenntniss des Thymus Nucleohistons. Ibid., 



1903, xxxix, p. 55. Further study of nucleohiston. 



12. Kossei, A. Ueber einen peptonartigen Bestandtheil des Zellkerns. 

 Ibid., 1884, viii, p. 511. Describes the preparation of the first his- 

 ton : from gooseblood. 



13. . (Comment on Bang's paper.) Ibid., 1900, xxx, p. 520. 



14. . (Reply to Bang.) Ibid., 1901, xxxii, p. 81. 



15. . Ueber ein einfachsten Eiweisskörper. Biochem. Central- 



hlatt, 1906-7, V, p. 35. Reports the preparation of Centrophorus 

 and Spcorechinns histon, but gives no details. 



16. Kossei, A,, and Kutscher, F. Beiträge zur Kenntniss der Eiweiss- 

 körper. Zeitschr. f. physiol. Ch., 1900, xxxi, p. 165. A study of 

 cleavage products of proteins and also a report of the preparation 

 of gadus histon from cod. 



17. Kossei, A., and Pringle, H. Ueber das Histon. Ibid., 1906, xlix, 

 p. 314. Quantitative studies. 



18. Lawrow, D. Ueber die Spaltungsprodukte des Histons von Leu- 

 kocyten. Ibid., 1899, xxviii, p. 388. A modification of the method 

 of preparing thymus histon and a study of its products. 



19. Lilienfeld, Leon. Zur Chemie der Leukocyten. /&ic?., 1893, xviii, 

 p. 473. Description of the first preparation of histon from thymus. 



20. Malengrau, F. La Cellule. 1900, xvii, p. 19. A study of the 



nucleohiston of thymus and Separation of an A- and B-nucleo- 

 albumin. 



21. Mathews, Albert P. Zur Chemie der Spermatozoon. Zeitschr. 

 f. physiol. Ch., 1897, xxxiii, p. 399. Preparation of arbacin histon 

 from sea urchin sperm. 



22. Miescher, F., and Schmiedeberg, O. Physiologisch-chemische 



Untersuchungen ueber die Lachsmilch. Archiv, f. ex per. Pathol. 

 u. Pharmakol., 1896, xxvii, p. 100. Preparation of an albumose 

 or histon from unripe salmon sperm. 



23. Schulz, F. N. Der Eiweisskörper des Haemoglobins. Zeitschr. 

 f. physiol. Ch., 1898, xxxiv, p. 449. Preparation of globin from 

 horse blood. 



