362 SOIL CONDITIONS AND PLANT GROWTH 



Page of text 

 on which 

 reference 

 is made. 



45. Boussingault, J. B., " Recherches chimiques sur la v^g^tation entre- 



prises dans le but d'examiner si les plantes prennent de I'azote a 

 i'atmosphere," Ann. Chim. Phys. (II.), 1838, Ixvii., 5-54; 1838, Ixix., 

 353-67; 1856 (iii.), 46 20,192 



46. Boussingault, J. B., " De la discussion de la valeur relative des assole- 



ments par les r^sultats de I'analyse 6l6mentaire," ibid. (HI.), 1841, 



i., 208-46 12, 192 



47. Boussingault, J. B., Economic Riirale consideree dans ses Rapports avec 



la chimie, la Physique, et la Meteorologie, 2nd ed., 1851, Paris {con- 

 tains a summary of his work up to that time) 14 



48. (a) Boussingault, J. B., and L^wy, " Sur la composition del'air confine 



dans la terre v^g^tale," Ann. Chim. Phys., 1853, xxxvii., 5-50 . 175, 227 

 {b) Boussingault, J. B., " Sur la nitrification de la terre arable," Compt. 



Rend., 1873, Ixxvi., 22- .9; Annates de Chimie, 1873, xxix., 186-206 178 

 (Boussingault's complete papers were collected in 8 volumes in 1891, 



48 (a) is found in Vol. 2, p. 76, and (b) in Vol. 5, p. 311.) 



49. Bouyoucos, G. J., (a) "Soil temperature," M/cWg-aH Tech. Bull No. 



17, 1913 ; No. 26, 1916 233 



(6) " Effect of Temperature on Some of the Most Important Physical 



Processes in Soils," ibid., No. 22, 19 15 233 



(c) Bouyoucos, G. J., and McCool, M. M., " The Freezing-point Method 

 as a New Means of Measuring the Concentration of the Soil Solu- 

 tion Directlv in the Soil," ibid., No. 24, 1915. 



" Further Studies of the Freezing-point lowering of Soils," ibid., No. 

 31. 1917- 



See also Special Bull. 36, T.918; Tech. Bull. 37, 1918 ; Tech. Bull. 42, 

 1918 125, 173, 225 



50. Boyle, Robert, The Sceptical Chymist, Part II., i66i . . . . 3 



51. Breazeale, J. F., (a) " Effect of the Concentration of the Nutrient Solu- 



tion upon Wheat Cultures," Science, 1905, 146-49 .... 238 

 (b) "The Relation of Sodium to Potassium in Soil and Solution 

 Cultures," jfourn. Amer. Chem. Soc, 1906, xxviii., 1013-25 . . 73 



52. Bredemann, G., " Bacillus Amylobacter A. M. et Bredemann," Centr. 



Bakt. Par., Abt. II., 1909, xxiii., 385-568 200 



53. Brenchley, Winifred E., (a) "The Influence of Copper Sulphate and 



Manganese Sulphate upon the Growth of Barley," Annals of Botany , 



1910, xxiv., 571-83 76, 84 



(b) "On the Action of Certain Compounds of Zinc, Arsenic and Boron 



on the Growth of Plants," »6/d., 1914, xxviii., 283-301 . . 78.83 



(c) " The Effect of the Concentration of the Nutrient Solution on the 

 Growth of Barley and Wheat in Water Cultures," ibid., 1916, xxx., 

 77-90 238 



id) " Inorganic Plant Poisons and Stimulants " (Camb. Univ. Press, 

 1914). (A review of the extensive literature of the subject) . 85, 237 



54. Bretschneider, Ber. landw. Ver.-Stat. zu Ida Marien hutte, 1861, iv., 



108 {Abs. in yahresb. Agric. Chem., 1S62, iv., i2:i) .... 21 



55. (a) Briggs, L. J., " The Mechanics of Soil Moisture," U.S. Dept. of 



Agriculture Bureau of Soils, Bull. '^o. 10, I'&qj . . . .224 

 {b) Briggs, L. J., and Shantz, H. L., "A Wax Seal Method for Deter- 

 mining the Lower Limit of Available Soil Moisture," Bot. Gaz., 



1911, li., 210-19 .......... 221 



