97 DUFOUR, J. — L'anthracnose ou noir de la vigne 



Chron. Agr. Vaud., T. II, p. 51. 



Two methods of treatment, preventative and curative. First prac- 

 ticed in winter, second in springtime. 



As a preventative use 25-30 per cent solution S. of I., or 5 Kgo. 

 Sulphate of Copper, 5 Kgo. S. of I. and 90 Kgo. water. 



98 DUFOUR, J.— Trailemetat de la chlorose. 



Chron. Agr. et Vit. T. XVI, p. 447. 



Used two solutions, viz., 100 grams to 1 litre for underdeveloped 

 vines, 200 grams per litre for well developed. 



99 DUHAMEL.— Traite des Arbres (1765). 



100 DUSSERE, M. C. — Vertilgung des Unkrautes in Getrei- 



deackern. 



Jour. d'Agr. Suisse, No. 23, June 5, (igoo). 



The use of a 15 per cent solution of S. of I. in form of a spray 

 did not give good results. 



101 EDTJiR, ( ). — Zur Vernichtung des Wilden Senfs und 



des Hederichs. 



Deut. Landw. Presse (1899), S. 267, 659. 



Jahres. Agr. Chem., Bd. 42, S. 352. 



Solutions S. of I., 5-10 per cent strength, are useless. A 20 per 

 cent solution is less efficacious than 2 per cent solution Sulphate 

 of Copper. 



102 EHLERT, W. — Versuche zur Vernichtung von Hederich 



mit Eisenvitriolosung und Eisenvitriolpulver. 



Korrespondenzbl. der Landw. Kammer fiir die Provinz Ostpreus- 

 sen, (1900). 



103 ENGLER ( ). — (Destruction of Pathogenic Organisms 



in Human Excrement.) 



In Lardenburg's Handworterburch der Chemie, Bd, III, S. 183. 

 S. of I. does not destroy putrefactive germs. 



104 FAIRCHTLD, D. G.— Index to North American Myco- 



logical Literature. 



Jour. Mycol, Vols. 6, 7 and 8. 



