18 BELL, ( ). — Manures: their Sources. 



Composition & Application, p. ioo. 



19 BELL, E. W. — Sulphate of Iron as a Manure for Potatoes. 



Chem. News, Vol. 71 (1895), p. 15. 



20 BENARD, J.— (Eradication of Weeds.) 



Bui. du Cornice agricole de Reims, Vol. 34 (1898). 



For the eradication of weeds used 5, 10 and 15 per cent solu- 

 tions of S. of I. and found them inefficient; 20 per cent solu- 

 tion efficient but less so than 2 per cent S. of C. solution. 



21 BENECKE, W. — Die zur Ernahrung der Schimmel pilze 



nothwendigen Metalle. 



Jahrb. Wiss. Bot, Bd. 28 (1895), S. 526. 



22 BERNARD, A. — Essai de theorie de Taction du sulfate de 



fer contre la chlorosis. 



23 BERNARD, A. — Le Calcaire sa Determination et son Role 



dans les Terres arables, 1902. 

 Chap. IV. 



24 BFRTEIS C— ( ). 



Allg. Landw. Monatschr., Bd. VII, Jahrg. (1842). 



Found S. of I. present in a soil which he examined and recom- 

 mended the application of lime to the soihto overcome any bad 

 effect. 



25 BERTRAND, G. — Sur l'intervention du Manganese dans 



les oxydations provoquees par la laccase. 



Compt. Rend. Acad. Sci. (Paris), T. 124 (1897), p. 1032. 



26 BESELER, W. — Versuche mit Vitriolspritzungen zu ver- 



schiedenen Friichten auf Cunrauer Moordam- 

 men. 



Mitt. Ver. Ford. Mookult. (1902), S. 281. 



Deut. Eandw. Presse, Bd. XXIX (1902), S. 680. 



Jahresber. Agr. Chem., Bd. 45, S. 67. 



Experimented with Horsebean. Sprayed with solution of S. of 



I., 60 pfd. to 100 litres, applied to % ha. Sprayed piece showed 



no improvement over unsprayed. 



