A SELECTED BIBLIOGRAPHY 367 



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104. (a) Gerlach, M., and Erlwein, " Elektrokulturversuche," Mitt. d. 



Kaiser-Wilhelm Institut.f. Landw. Bromberg, 1909, ii., 424; 1912, 

 iv.,3545 1913, v., 403 88 



(b) Gerlach, M., and Vogel, I., " Stickstoffsammelnde Bakterien," 

 Centr. Bakt. Par., Abt., II., 1902, viii., 669-74. " Weitere VerSuche 

 mit Stickstoffbindenden Bakterien," ibid., 1902, ix., 817-21 ; 1903, 



x., 636-43 198 



(c) Gerlach, M., " Untersuchungen iiber die Menge und Zusammen- 

 setzung der Sickerw_>sser," Mitt. K. W. Inst. Landw. in Bronrberg, 

 1910, ii-., 35 1 ' 81 lSl 



105. Gile, P. L., and Ageton, C. N., "The Effect of Strongly Calcareous 



Soils on the Growth and Ash Composition of Certain Plants," 



Porto Rico Ag. Expt. Sta. Bull. 16, 1914 304 



io5a. Gillespie, L. J., " The Reaction of Soil and Measurements of 

 Hydrogen Ion Concentration," Joum. Wash. Acad. Sci., 1916, vi., 

 7-16 . 116 



(b) Gillespie, L. J. and Hurst, L. A., " Hydrogen Ion Concentration 

 Measurements of Soils of Two Types Caribou Loam and Wash- 

 burn Loam," Soil Sci., 1917, iv., 313-19 243 



(c} Gillespie, L. J., and Wise, L. E., " The Action of Neutral Salts on 

 Humus, and other Experiments on Soil Acidity," Journ. Amer. 

 Chem. Soc., 1918, xl., 796-812 114 



106. Gimingham, C. T., "The Scouring Lands of Somerset," Joum. Bd. 



of Agric., 1910, xvii., 529-41 ; Joum. Agric. Sci., 1914, vi., 328- 



36 132, 3i7 



107. Glauber, Johann Rudolph, Des Teutschlandts Wohlfart (Erster 



Theil), das dritte Capittel, De concentration Vegetabilium, 1656, 

 Miraculum Mundi, 1656 ......... 3 



io7a. Glinka, K., Die Typen der Bodenbildung, ihre Klassifikation und 



geographische Verbreitung, Berlin, 1914 303 



108. Gola, G., (a) " Saggio di una teoria osmotica dell' edafismo," Annali 



di Bot., 1910, viii., 275-548 123, 237 



(b) " Osservazioni sopra i liquidi circolanti nel terreno agrario," Ann. 



d. R. Accad. Agric., Torino, 1911, liv., 37 pp 123, 239 



(A good summary of these papers is given by Cavers in 

 Journ. Ecology, 1914, ii., 209.) 



109. Golding, John, "The Importance of the Removal of the Products of 



Growth in the Assimilation of Nitrogen by the Organisms of the 

 Root Nodules of Leguminous Plants," yourn. Agric. Sci., 1905, i., 

 59-64. " The Nature of Nitrogen Fixation in the Root Nodules of 

 Leguminous Plants," Brit. Ass. Rpts., 1910 206 



no. Goodey, T., (a) " A Contribution to our Knowledge of the Protozoa 

 of the Soil," Proc. Roy. Soc., 1911, Ixxxiv. B, 165-80. " Investigations 

 on Protozoa in Relation to the Factor Limiting Bacterial Activity in 



Soil," ibid., 1915, Ixxxviii. s, 437-56 289 



(b) " Further Observations on Protozoa in Relation to Soil Bacteria," 

 ibid., 1916, Ixxxix. B, 297-314 293 



in. Gottheil, O., " Botanische Beschreibung einiger Bodenbakterien," 



Centr. Bakt. Par., Abt. II., 1901, vii., 430, etc 217 



112. Grandeau, M. L., (a) " Recherches sur le role des matieres organiques 

 du sol dans les phenomenes de la nutrition des vege"taux," Compt. 

 Rend., 1872, Ixxiv., 988-91 (issued more fully as Publication de la 

 Station Agromonique de I'Est, 1872) ...... 15, 143 



