BIBLIOGRAPHY. 1 33 



BRUNCHORST, B.— Ueber die Knollchen an der Wur- 

 zeln von Alnus und den Eleagnaceen. Bot. Centralb. 24: 222. 

 1885. 



CHALMOT, G. de. — The availability of free nitrogen as 

 plant food. Agr'l Sci., 8 (1894), pp. 471-482. (A review of 

 recent publications). 



CLOS, D. — A review of plant tubercles and leguminous 

 tuberculoids. (Revision des tubercles des plantes et des tuber- 

 culoides des Legumineuses.) Mem. d. l'Acad. Sci. Toulouse, 

 5 (1893), ser. 9, p. 27. 



CLOS, D. — Revision of the tubercles of plants and tuber- 

 culoides of Leguminosae. Abstract in Bui. Soc. Bot. France, 

 41, (1894), No. 5, pp. 403-404- 



CONN, H. W. — The nature of the root tubercles of legu- 

 minous plants, — a review. Ex. Sta. Record II, 686, 1891. 



CONN, H. W. — The function of the root tubercles of 

 leguminous plants,— a review. Ex. Sta. Record III, 56, 1891. 



CONN, H. W. — Free nitrogen assimilation by plants. 

 Torrey Bulletin XX, 148, (1893). 



COOKE, M. C. — Root tubercles of Leguminosae. Gard. 

 Chron. 16, (1894), ser. 3, pp. 307-308, (a resume). 



COOKE, M. C. — Root tubercles of alder, etc. Gard. 

 Chron. 16, (1894), ser. 3, p. 398. 



DANCKELMANN.— Root tubercle bacteria, Ztschr. Forst. 

 und Jagdw., 27: 90, 1895. 



DICKSON, D. and MALPEAUX L.— Inoculation experi- 

 ments with Nitragin. Jour. Agr. Prat. 61, II; 191, 1897. 



DROBNIG, M. — A contribution to the knowledge of root- 

 tubercles. (Beitrage fur Kenntniss der Wurzelknollen). 

 Inaugural Dissertation, Rostock pp. 80; Bot. Centbl. 56, 1893. 



DEHERAIN, P. P. — Sur Intervention de l'azote atmos- 

 pherique dans la vegetation. Compt. rend. J^: 1352, 1891, and 

 76: 1390, 1893. 



FRANK, B. — Ueber den Nachweis der assimilation freien 

 Stickstofrs durch erdboden bewahnenden Algen, Berichte d. 

 deut. Bot. Ges. 7: 34, 1889. 



FRANK, B. — The assimilation of atmospheric nitrogen by 

 Robinia Pseudacacia. (Ueber Assimilation von Stickstoff aus 

 Luft durch Robinia Pseudacacia). Ber. d. deut. Bot. Ges. 8: 

 331, 1890. 



