175 
of cryst. copper sulphate, 25 kilos of lime, and 25 hectoliters of water) and 
mixture of iron sulphate and lime (50 kilos iron sulphate, 25 kilos of lime, 
25 hectoliters of water) in treating Phytophthora infestans. The Bordeaux 
mixture gave the most satisfactory results, and the author feels warranted 
in recommending provisionally the use of the mixture immediately upon 
appearance of the disease. An analysis of soil and plant sprayed June 21, 
made Aug. 4, gave no signs of copper. (D. G. F.) 
513 . Plowright, C. B. Bordeaux mixture and the potato disease. Gard. Chron., 3d 
ser., vol. 10, No. 256, London, Nov. 21, 1891, pp. 609-610, 11 cols. Describes 
the experiment of Mr. R. Brown, of Donagmore, Tyrone, in which he disease 
was successfully treated. (M. B. W.) 
5 £4. Plowright, C. B. Messrs. Sutton & Sons’ experiments with Bordeaux mixture. 
Gard. Chron., 3d ser., No. 253, vol. 10„ Oct. 23, 1891, p. 523, two-thirds col. 
States that these experiments in treatment ot potato blight were unsuc¬ 
cessful and were opposed to the reports from all countries, and asks the 
question “why? ” (M. B. W.) 
515. Plowright, C. B : The Bordeaux mixture; some experiments on the preparation and 
effects on vegetation of the Bordeaux mixture. Gard. Chron., 3d ser., vol. 10, 
No. 255, Nov. 14, 1891, p. 593, 11 cols. Shows the necessity of having a good 
quality of fresh lime to decompose all the copper sulphate. (M. B. W.) 
516. Powell, Geo. T. The scare about sprayed grapes. Cult, and Country Gent., 
vol. 56, No. 2020, Albany, Oct. 15, 1891, p. 836, 1 col. Refers to hasty action 
of New York City hoard of health in condemning grapes sprayed with the 
Bordeaux mixture. Thinks condemnation was not warranted. (D. G. F.) 
517. Scovell, M. A. and Peter, A. M. Smut. First Ann. Rept. Ivy. Agric. Ex. Sta., 
Frankfort, 1890, p. 126. Reports prevention of smut by treating wheat with 
copper sulphate, 10 pounds of sulphate to 8 gallous of water. Seed wheat 
was immersed in solution and spread on hoards to dry. Treatment reported 
entirely successful. (D. G. F.) 
518. Scribner, F. L. Does it pay to combat plant diseases by spraying 1 Orchard and Gar¬ 
den, vol. 13, Little Silver, N. J., Nov., 1891, p. 185, £ col. Cites two instances 
of successful use of Bordeaux mixture, one in which 203 vines were sprayed 
8 times to prevent rot, at a total cost of $6.51, saving $32.40 worth ot grapes; 
and a second in which 8,450 vines were treated 7 times and the estimated 
profit shown by control vines were $1,800. (D. G. F.) 
519 . [Sorauer, Paul.] Sulphosteatite cuprique (Kupfervitriol-Speckstein). Zeitsclir. 
fiir Pflanzenkrankheiten, Bd. 1, heft. 1, Stuttgart, 1891, p. 49-50. Notice of a 
circular of Jean Souheur in Antwerp on the cupric sulphosteatite which ho 
introduced in 1890, said to stick very well. Gives account of methods ol 
applying to grapes, tomatoes, and potatoes. (W. T. S.) 
520. Staiil, J. M. Bordeaux mixture for pear leaf-blight. Cult, and Country Gent. 
61st year, Albany, Dec. 31,1891, p. 1054, If cols. Advocates use of Bordeaux 
mixture as cure for pear leaf-blight. Quotes from various letters giving 
good results in its use. Gives method adopted. (J. F. J.) 
521. Summey, Elmer E. Shall we protect our apple crop 1 Cult, and Country Gent., 
61st year, No. 1998, Albany, May 14, 1891, pp. 396-397, 2 cols., figs. 2. De¬ 
scribes methods of spraying orchards recommended by the Department of 
Agriculture and others to prevent the apple scab; figures pump and bam¬ 
boo lance. (D. G. F.) 
522. Van Slyke, L. L. Fungicide analysis and valuation. Cult, and Country Gent., 61st 
year, No. 2006, Albany, July 9,1891, p. 556, 2 cols. Gives analyses of commer¬ 
cial copper sulphate, copper carbonate, and Powell’s “ Copperdine.”- Shows 
samples of copper sulphate from the Nichols Chemical Company, New J ork, 
contained 99.6 per cent of copper sulphate and samples from various other 
sources contained from 98.6 to 98.1 per cent of sulphate. 1 inds in one 
sample sent from West Park, New York a considerable quantity of free 
