408 THE VITAMINES 



175. Anonymous: Experiments with bacterized peat. Agr. News. 13, 263, 



1914. 



176. BOTTOMLEY, W. B. : A bacterial test for plant food accessories (Auxi- 



mones). Proc. Roy. Soc. 89 B, 102, 1915. 



177. CHITTENDEN, F. I. : Report on experiments with bacterized peat or 



humogen. J. Roy. Hort. Soc. 41, 305, 1915. 



178. BOTTOMLEY: Some effect of organic growth-promoting substances 



(auximones), on the growth of Lemna minor in mineral culture 

 solution. Proc. R. Soc. 89 B, 481, 1917. 



179. The same. Ann. Bot. 34, 1920. 



180. ROSENHEIM, OTTO: Accessory factors for plant growth. Biochem. J. 



11, 7, 1917. 



181. BOTTOMLEY: Isolation from peat of certain nucleic acid derivatives. 



Proc. R. Soc. 90 B, 39, 1917. 



182. APPLEMAN, C. O.: Maryland Agr. Exp. Sta. Bull. 212, 1918; Science 



N. S. 48, 319, 1918. 



183. BOTTOMLEY: Effect of nitrogen-fixing organisms and nucleic acid 



derivatives on plant growth. Proc. R. Soc. 91 B, 83, 1919. 



184. JONES, D. H. Growth of plants. Abstr. Bact. 1, 43, 1917. 



185. STEAD, AKTHUK. Notes on humus, humogen, and its accessory plant 



food substances. S. Afr. J. Sci. 13, 239, 1917. 



186. MOCKERIDGE, FLORENCE A. : Some effects of organic growth-promoting 



substances (auximones) on the soil organisms concerned in the 

 nitrogen cycle. Proc. R. Soc. 89 B, 508, 1917. 



187. SCHREINER, REED AND SKINNER: U. S. Dept. Agr. Bureau of Soils. Bull. 



47, 1907; Schreiner and Skinner: Ibid. Bull. 87, 1912; Schreiner and 

 Shorey: Ibid. Bull. 74, 1910; Shorey Bull. 88, 1913. 



188. MACALISTER: The action of Symphytum officinale and allantoin. 



Brit. Med. J. Sept. 21, 1912. 



189. COPPIN: The effect of purine derivatives and other organic compounds 



on growth and cell-division in plants. Biochem. J. 6, 416, 1912. 



190. MOCKERIDGE, FLORENCE ANNIE: The occurrence and nature of the 



plant-producing substances in various manurial imposts. Ibid. 

 14, 432, 1920. 



191. GRAFE, VICTOR: Sterilisieren lebender Pflanzen. Abderhaldens Handb. 



d. biochem. Arbeitsm. 6, 139, 1912; 8, 178, 1915. 



191a. PARSONS, HELEN T. : The antiscorbutic content of certain body tissues 

 of the rat. The persistence of the antiscorbutic substance of the 

 rat after long intervals on a scorbutic diet. J. Biol. Chem. 44, 

 587, 1920. 



192. SPRIGGS, E. J. : The effect of a meat diet upon the coats of rats with and 



without the supply of lime. J. Physiol. 36, xvii, 1907. 



193. MAIGNON, F. : L'influence des saisons sur la toxicite" du blanc d'oeuf, 



chez les rats blancs. C. r. de la ass. fran9. avanc. sci. 43, 553; C. r. 

 166, 1008, 1918; 167, 91, 1918. 



194. The same. Toxicit6 du blanc d'oeuf; 1'influence des saisons sur la 



sensibility de 1'organisme a 1'intoxication azotee. C. r. 166, 919, 

 1918. 



