135 
171. Scribner, F. L. Pear scab. Orchard and Garden, Little Silver, N. J., August, 
1890, Vol. XII, No. 8 (with figs.). Gives description of disease caused by F. 
dendriticum , (Wallr.) Fckl., considering the latter synonymous with F. pyri- 
num, (Lib.) Fckl. Shows necessity of early spraying. Kecommends ammo- 
niacal copper carbonate. 
172. - The powdery mildew of the rose. Ibid, p. 144 (with figs.). Describes dis¬ 
ease carefully, giving for remedies sulphur and potassium sulphide. 
173. Southworth, Miss E. A. A new hollyhock disease. Bull Torr. Bot. Club, Vol. 
XVII. No. 9, September, 1890, p. 235, N. Y. Notice of paper read by B. T. 
Galloway before Botanical Club A. A. A. S., Indianapolis, Iud., August, 1890. 
Describes diseases as caused by Colletotrichium althaea}, n. s. 
174. Weed, C. M. The potato blight. Am. Agriculturist, New York. Vol. XLIX, No. 
7, p. 360. Notes successful attempts to control ravages of Phytophthora in~ 
festans with the Bordeaux mixture. Gives formulae and method of treat¬ 
ment. 
175. -. An experiment in preventing the injuries of potato rot Sci. Am., April 5, 
1890, Yol. LXII, No. 14, N. Y., p. 217. 
176. Yeomans, W. H. Bean rust and other fungous diseases. Popular Gardening, Buf¬ 
falo, N. Y., November, 1890, Yol. VI, No. 2, p. 27. Notes very destructive 
fungous diseases of bean leaves. Scientific name not given. 
Cj 
