832 THE ROLE OF NITROGEN, ETC., I., 



5. Bach— C.R. cxvi., 1893, 1145, 1389; Fischer— Ber. 1894, 3231. 



6. Curtius u. Reinke— Ber. xv., 1897, 201. 



7. Pollacci— Atti Inst. bot. Pavia, 1900, 1902, 1904; Usher and Priestley 



— Proc. Roy. Soc. Lond. B. lxxvii., 1900, 369, and lxxviii., 368;. 

 Ewart— Proc. Roy. Soc. Lond. B. lxxx., 1908, 30. 



8. Fenton— Trans. Chem. Soc. xci., 1907, 687. 



9. Pfeffer— Jahrb. wiss. Bot. viii., 1872, 485. 



10. Fischer, A —Jahrb. wiss. Bot. xxii., 1890, 73. 



11. Hoppe-Seyler— Ber. iv., 1871, 396. 



12. Zeit. physiol. Chem. iii., 1879, 351. 



13. Nencki u. Magnus Levy — Reymond's Arch. Physiol. 1902, 365. 



14. Stoklasa— Chem. Centralblatt i., 1905, 265. 



15. Neuberg— Biochem. Zeit. ix., 1908, 557. 



16. Pelouze— C.R xl., 1855, 605. 



17. Green— Proc. Roy. Soc. Lond. B.xlviii., 1890, 370. 



18. Treboux— Ber. bot. Ges. xxii., 1905, 570. 



19. Czapek u. Emmerling — Beitr. chem. Phys. Path. 1902. 



20. Jost— Plant Physiology, 1907, 141. 



21. Abelous et Aloy— C.R. Iv., 1903, 1080. 



22. Kastle & Elvolve— Amer. Chem. Journ. xxxi., 1904, 606. 



23. Irving & Hankinson — Bio-Chem. Journ. iii. 1908, 87. 



24. Lang— Hof. Beit, v., 1904, 321. 



25. Kellner— Landw. Jahrb. 1879, 8 sup-Heft, 243. 



26. Emmerling — Inst. Bot. Jahresber. 1884, i.,73. 



27. Suzuki— Bot. Centralblatt, lxxv., 1898, 289. 



<J8. Hansteen — Jahresb. wiss. Bot. xxxiii., 1899, 417. 



29. Maliniak— Revue de Bot. xii., 1900, 337. 



30. Zaleski— Ber. bot. Ges. xix., 1901, 331; xxiii., 1905, 126. 



31. Pfeffer— Physiol, i., 318; Lefevre— C.R. cxli., 1905, 664. 



32. Balicka-Iwanowska — Bull. Acad. Crac. 1903. 



33. Loewi — Schmiedeberg's Archiv, xlviii., 1902, 303. 



34. Henriques & Hansen — Zeit. physiol. Chem. xliii., 1904, 417. 



35. Abderhalden — Zeit. physiol. Chem. xliv., 1905, 198. 



36. Osborne & Voorhbes — Amer. Chem. Journ. xv., 1893, 392-471. 



37. Chittenden & Osborne — Amer. Chem. Journ. xiii., 1891, 453, 529;. 



xiv., 1892, 20. 



38. Osborne & Harris— Journ. Biol. Chem. iii., 1907, 213. 



39. Fischer— Ber. xxxir., 1901, 433; Zeit. physiol. Chem. xxxiii., 1901, 152.. 



40. Kossel & Kotscher — Zeit. physiol. Chem. xxxi., 1900, 165. 



41. Relander— Centralblatt f. Bakt.(2), xx., 1908, Nos.15-17. 



42. Osborne & Harris— Amer. Journ. Physiol, xiii., 447. 



43. Mellanby— Journ. Physiol, xxxvi., 1907, 288. 



44. Kleinschmitt — Zeit. physiol. Chem. liv., 1908, 110. 





