3gg W. Dörries: Chemische ysiologio 1915 und 1916. [32 



355. Stutzer, A. Die Wirkung von Blei als Reizstoff für 

 Pflanzen. (Journ. Landw. LXVI, 1916, p. 1-8.) Ref. in Bot. Centrbl. 

 CXL, 1919, p. 163. 



356. Stutzer, A. und Haupt, W. Neue Erfahrungen über die 

 Wirkung von Kalkstickstoff. (Journ. f. Landw. LXIII, 1916, p. 385.) — 

 Ref. in CentrW. Biochem. Biophysik XVIII, 1915/16, p. 795. 



357. Tartier, G. Der qualitative und quantitative Nachweis 

 der Stoff auf nähme bei Pflanzen. (Prometheus XXVI, 1915, p. 280 

 bis 282, 2 Fig.) 



358. Toulaikov, jSi. Der osmotische Druck der Bodenlösung 

 und die Glasigkeit des .,Bielotourka-Weizens". (Rundschau experi- 

 mentelle Landw. XVII, 1916, p. 79-91.) - Ref. in Bot. Centrbl. CXXXVII, 

 1918, p. 293-294. 



359. Toulaikov, M. N. Die Wirkung des osmotischen Druckes 

 der Bodenlösung beim Anbau des ,,Bielotourka-Weizens". (Zeit- 

 schrift f. exper. Landw., [Zürn. Opit. Agroion.'J XVII, 1916. p. 122-163.) - 

 Ref. in Bot. Centrbl. CXXXVII, 1918, p. 234. 



360. Tottlnghaiii, W. E. and Beck, A. J. Antagonism between 

 manganese and iron in the growth of wheat. (Plant World XIX, 

 1916, p. 359-370.) Ref. in Bot. Centrbl. CXL, 1919, p. 34-35. 



361. Triika, R. Über die Wirkung des tSOg auf die Pflanzen. 

 (Vestnik V. sjez. ces. pfü-. 1915, p. 431. Böhmisch.) - Ref. in Bot. Centrbl. 

 CXXIX, 1915, p. 378. 



362. Tröndle, A. über die diosmotischen Eigenschaften der 

 Pflanzenzelle. (Vierteljahrsschr. Naturf. Ges. Zürich LXI. 1916, p. 465 

 bis 473.) - Ref. in Bot. Centrbl. CXXXVII, 1918, p. 294. 



363. Tröndle, A. Über die Permeabilitcät der Wurzelspitze 

 für Salze. (Actes Soc. Helv. Sc. nat., 97me Sess. 1915 a Geneve, 1916, 

 p. 203-205.) Ref. in Bot. Centrbl. CXXXV, 1917, p. 347-348. 



364. True, Rodney H. and Bartlett Harley, Harris. The exchange 

 of ions between the roots of Lupiniis albus and culture Solutions 

 containing one niitrient salt. (Anier. Journ. of Bot. II, 1915, p. 255 

 bis 278.) — Conclusions: ,,1. Roots of Lupinus albus grown in darkness in 

 distilled water give up their salts to the water at a varying rate until the death 

 of the plants occur through exhaustion of the reserves. 2. KH2PO4 and KCl 

 Solutions act essentially like distilled water in the concentrations stiidied 

 by US. Solutions of KoSOj and KNO3 show a slight absorption i)hase resulting 

 in a minimal net gain in salts to the plant but otherwise differ little from the 

 phosphate and chloride. 3. Absoriition and growth take place in NaCl 

 essentially as in KNO3 and K.^SO«. 4. Solutions of Mg(N03)2 and MgSO« 

 Support a slight but clearly developed absorption phase resulting in a net 

 gain in salts to the plant. A net leakage of salts is seen in the more dilute 

 Solutions and toxic action in those of greater concentration. 5. Calcium nitrate 

 and calcium snJphate in all concentrations studied are actively absorbed by 

 the roots and apparently enable the plants to retain possession of the salts 

 alreadj^ present." 



365. True, Rodney H. and Bartlett, Harley Harris. The exchange 

 of ions between the roots of Lupinus albus and culture Solutions 

 containing two nutrient salts. (Amer. Journ. of Bot. II, 1915, p. 311 

 bis 323, mit 3 Fig.) — Summary of resvdts: ,.The chief results obtained in 



