35 BORKONY, TH.— Vergleichende Studien iiber die Gift- 



wirkung verschiedener chemischer Substanzen 

 auf Algen and Infusorien. 



Archiv. Physiol. (Pfliiger), Bd. 64 (1896), S. 262-306. 

 S. of I. shown to be only weakly poisonous. 



36 BORD-RY, E. — Le procede Rassiguier contre chlorose de 



la vigne. 



Jour. Agr. Prat. (1856), T. II, p. 293. 



Writes on M. Louet's results with the method and compares with 

 his own. 



37 BORNIER, ( ).— (Chlorosis.) 



Rev. Vit. 



Used a 50 per cent solution with the result that not a trace of 

 Chlorosis manifested itself during the season. 



38 BOUSSINGAULT, ( ) .— Agronomie, Chemie, Agricul- 

 ture et Physiologie, (1874). 



Showed chlorotic and non-chlorotic leaves to contain almost 

 same amount of iron. 



39 BRACCI, ( ). — Sull' azione del solfato di ferro sulle 

 piante. 



Staz. Sper. Agr. Ital., Vol. XV, pp. 38-45. 



Wheat and oats ripened earlier and yielded more grain and 

 straw. The straw of the oats showed increased content of Fe2 

 O3 and P2 O5. 



40 BRANDIN, ( ). — La Destruction des Sanves. 



Bui. Soc. Nat. Agr. France (1900), p. 451. 



Experimented with 95 Hect. oats and 45 Hect. wheat. Mustard 

 apparently badly injured by 12 per cent solution but recovered to 

 vigorous growth. 354 per cent S. of C. destroyed completely. 



41 BRETFELD, ( ). — Das Versuchswesen auf dem Gebiete 

 der Pf 



(188*4), S. 135. 



der Pflanzennhysiologie. 



