584 EXPERIMENT STATION RECORD. 



128-156). — Notes are given on stndies made by the author during the past 2 years, 

 which are preliminary to a monograph of the Ustilagineie of North America which 

 he hopes to issue in the near future. 



Notes on some West American fungi, P. L. Ricker {Jour. Mycol., 8 {1902), No. 

 6.3, })p. 125-128, fig. 1). — Notes and descrijitions are given of a number of fungi which 

 were collected in Wyoming and Idaho during 1901, together with a nuiiiber of speci- 

 mens found on grasses in the herbarium of this Department. 



Plant pathological stations in Northern Europe, p]. Marchal {Bui. Agr. 

 [^r//.s.sv/x], 18 {1902), No. 1, pp. 45-53). — A description is given of a number of plant 

 pathological laboratories in Germany, Sweden, Denmark, and Holland which were 

 visited by the author. 



ENTOMOLOGY. 



Proceedings of the fourteenth annual meeting of the Association of 

 Economic Entomologists ( U. S. Dipt, ^igr., Diri.^-lon of Entomologij Bui. ,J7, u. .sv';-., 

 pp. 127, pi. l,figs. 2). — At this meeting, held in Pittsburg, Pa., June 27 and 28, 1902, 

 the following papers were read: 



On the study of forest entomology in America, A. D. Hopkins (pp. 5-28). — This is the 

 address of the retiring president, and contains notes on the present status of the 

 study of forest insects in America, together with an account of some of the more 

 serious outbreaks among the forest insects during recent years. A summarized state- 

 ment is presented, showing some of the practical results of forest entomology. 



Notes on tJie use of the lime-sulpkur-and-salt and tJie resin ivashes in Ohio, A. F. Burgess 

 (pp. 33-35). — Fruit trees sprayed with lime-salt-and-sulphur wash on December 31 

 were inspected on the following May 24, when it was found that about 98 per cent of 

 the scales had been destroyed. This wash was also applied by several orchardists 

 during March with satisfactory results. One case of apparent injury to peach twigs 

 was observed on Catawba Island. Resin wash applied January 8 ajiparently 

 destroyed all the scales, as judged by an examination made May 24. Similar experi- 

 ments were made by fruit growers with this wash, with satisfactory results. 



Experimental work in New York State agai7ist the San Jose scale, E.'P. Felt (pp. 35, 36). — 

 Excellent results in the destruction of the San Jose scale were obtained from the use 

 of a 20 per cent mechanical mixture of crude petroleum; potash whale-oil soap, 2 

 lbs. to the gallon of water; tobacco whale-oil soap, 2 lbs. to the gallon of water; and 

 linseed oil, either raw or boiled. No decided injuries were caused to any of the 

 trees, except from the use of the linseed oil. 



Report of experiments with lime-salt-and-sulphur wash against the San Jose scale in 

 Maryland, A. L. Quaintance (pp. 37-40). — Applications of lime-salt-and-sulphur wash 

 were made in 3 localities. Five-year-old plum trees were treated on INIarch 4, and 

 when examined later it was found that the treatment had not given satisfactory 

 results. Two-year-old peach trees treated on March 27 and 28 were not injured by 

 the ajjplication, but it appeared that only from 45 to 50 per cent of the scales were 

 killed. Other peach trees treated on March 22 remained uninjured and the effecti\-e- 

 ness of the application was much greater, about 98 or 99 per cent of the scales being 

 killed. 



Some practical experiments with various insecticides for the San Jose scale in Georgia, 

 W. M. Scott (pp. 41-51). — Abstracted from another publication (see p. 589). 



Soluble arsenic in arsenical insecticides, J. K. Haywood (pp. 51-54). — An examination 

 of samples of Paris green showed that an excess of free arsenic may be due to the 

 decomposition of Paris green in contact with water, to a fine pulverization of the 

 Paris green, or to its being originally added to the material. In determining the 

 soluble arsenious oxid in Paris green it is recommended that 1 part of the Paris green 



