244 METABOLISM 



cates a splitting without any actual change in energy. Oxygen is printed in 

 large Roman capitals, carbon-dioxide in small capitals, carbohydrates and 

 other compounds of carbon, hydrogen and oxygen in large italic capitals, 

 inorganic nitrogen (nitrogen, nitric acid, ammonia) in small italic capitals, 

 organic nitrogen in black type. The path of circulation of these materials 

 is indicated by the arrows at the ends of the lines. 



Bibliography to Lecture XIX. 



AEBY. 1896. Versuchsstationen, 46, 409. 



ARTARI. 1899. Bullet, des naturalistes de Moscou, No. i. 



DE BARY. 1879. Die Erscheinung der Symbiose. Strassburg. 



BEIJERINCK. 1888. Bot. Ztg. 46, 725. 



BEIJERINCK. 1890. Ibid. 48, 725. 



BEIJERINCK. 1901. Centrbl. Bakt. II, 7, 561. 



BERTHELOT. 1892. Compt. rend. 115, 569 and elsewhere. 



BOUSSINGAULT. 1860. Agronomic, i, 65. 



BREFELD. 1902. Centrbl. Bakt. II, 8, 24. 



BUNGE. 1889. Lehrbuch d. physiol. und pathol. Chemie, 2nd ed. p. 21. Leipzig. 



FISCHER, ALFR. 1903. Vorlesungen iiber Bakterien, 2nd ed. p. 163. Jena. 



FRANK. 1887-88. Ber. d. bot. Gesell. 5, 395 ; 6, 248. 



FRANK. 1888. Landw. Jahrb. 17, 441. (Die Ernahrung der Pflanzen mit Stick- 



stoff. Berlin.) 



FRANK. 1890. Landw. Jahrb. 19, 523. (Die PHzsymbiose der Leguminosen. Berlin.) 

 HELLRIEGEL and WILFARTH. 1888. Unters. iiber die Stickstoflnahrung der Gramineen 



u. Leguminosen (Beil. Zeit. d. Vereins fur die Rubenzuckerindustrie). Berlin. 

 HILTNER. 1896. Versuchsstationen, 46, 153. 

 HILTNER. 1899. Centrbl. Bakt. II, 5, 831. 

 HILTNER. 1900. Ibid. II, 6, 273. 



[HILTNER. 1904. LAFAR'S Handb. d. tech. Mykologie, 3, 24.] 

 JACOBITZ. 1901. Centrbl. Bakt. II, 7, 783. 

 JENSEN, H. 1898-9. Centrbl. Bakt. II, 4, 401 ; 5,716. 

 MENSEN, H. 1904. LAFAR'S Handb. d. tech. Mykologie, 3, 182.] 

 KAMIENSKI. 1881. Bot. Ztg. 39, 457. 

 [KEUTNER. 1904. Wiss. Meeresunters. Bd. 8.] 

 [KocH. 1904. LAFAR'S Handb. d. tech. Mykologie, 3, i.] 

 KOSSOWITSCH. 1894. Bot. Ztg. 52, 97. 



KiiHN, J. 1901. Fiihling's Landw. Zeit. 1,2; reviewed in Centrbl. Bakt. II, 7, 601. 

 LEMMERMANN. 1901. Kritische Studien der Denitrinkationsvorgange. Jena. 

 MAASSEN, A. 1901. Zersetzung d. Nitrate u. Nitrite durch Bakterien (Arb. Kais. 



Ges.-Amt), 18, i. 



MAGNUS, W. 1900. Jahrb. f. wiss. Bot. 35, 205. 

 MAZE. 1897. Annales de 1'Institut Pasteur, 1 1, 44 ; 12, i. 

 MOLLER. 1902. Reviewed in Bot. Ztg. 60, II, Abt. 201. [Comp. also Bot. Ztg. 1903, 



II, 329.] 



NOBBE. 1899. Versuchsstationen, 51, 241. 

 NOBBE and HILTNER. 1899 a. Versuchsstationen, 51, 241. 

 NOBBE and HILTNER. 1899 b. Ibid. 52, 455. 

 PFEIFFER and FRANKE. 1897. Versuchsstationen, 48, 455. 

 PRAZMOWSKI. 1890-91. Landw. Versuchsstationen, 37, 161; 38, 5. 

 PURIEWITSCH. 1895. Ber - d. bot. Gesell. 13, 342. 

 SAIDA. 1901. Ber. d. bot. Gesell. 19, 107. 

 SCHLICHT. 1889. Landwirtschaftl. Jahrbucher, 18, 477. 

 SCHLOSSING and LAURENT. 1890. Compt. rend. Paris, III, 750; comp. also Annales 



de I'lnstitut Pasteur, 6, 65 ; 6, 824 (Kocn, Jahresbericht, 1890-2). 

 SCHULZ-LUPITZ. 1 88 1. Landw. Jahrb. 10, 777. 

 SHIBATA. 1902. Jahrb. f. wiss. Bot. 37, 643. 

 STAHL. 1900. Jahrb. f. wiss. Bot. 34, 539. 

 STUTZER. 1901. Centrbl. Bakt. II, 7, 897. 

 [TERNETZ. 1904. Ber. d. bot. Gesell. 22, 267.] 

 WARD. 1899. Annals of Botany, 13, 52. 



WINOGRADSKY. 1895. Archives des Sc. biologiques. St. Petersburg, 3. 

 WINOGRADSKY. 1902. Centrbl. Bakt. II, 9, 43. 



