STENDER, A. — Vertilgung gewisser Ackerunkrauter durch 

 Metallsalze. 



Mitt. Landw. Inst. Breslau, Bd. Ill, (1900), S. 73. 

 Jahresber. Agr. Chem. XLIII, S. 353. 



Treated under six heads : 



1. By what salts are Charlock and Mustard most injured? 



2. What is best concentration for a spray? 



3. What if best time for spraying? 



4. Is it necessary to repeat spraying? 



5. What useful plants are injured, and to what extent ? 



6. What is the physiological reason for death? 



Well developed Red Clover and Peas did not show injury. Beans 

 were badly injured. 



STRAUCH, ( ).— ( Hederichvertilgung ). 

 Ztschr. Landw. Kammer, Prov. Schlesien, (1898), S. 881. 



TOEPFFER, J. — Die fahrbaren Spritzen und die Vertilgung 

 des Hederichs durch Eisenvitriol. 



Deut. Landw. Presse, Bd. 30, (1903), S. 291. 



TRIBOULET, ROMMANTIN & ST. QUENTIN.— 



(Destruction of Wild Mustard.) 



Bui. Soc. Nat. Agr. France, 64 (1904), No. 6, pp. 461-66. 

 Used S. of I. and Sulphate of Copper in powdered form. 



Von UNWORTH.— ( ).— Zur Vertilgung von Hederich durch 



Bespritzen mit Eisenvitriol (?) 



Ztschr. Landw. Kammer, Schlesien (1899), S. 880. 



Deut. Landw. Presse 26, 639. 



Does not recommend S. of I. for killing weeds. 



VANDERVAEREN, J.— Destruction des Sanves. 



Jour. Agr. Prat. n. Ser. 5, (1903), No. 23, p. 731. E. S. R., 15, 266. 



Application of 200 Kgo. dry powdered S. of I. per hectare. This 

 method generally practiced in Belgium. 



VESTERGAARD, A. B.— (On the Eradication of Charlock by 



means of Iron Sulphate solutions.) 



Ugeskr. Landm. 47, (1901), No. 47, p. 451. E. S. R. 13, 756. 



