240 EXPERIMENT STATION RECORD. 



A tobacco sickness of soil (Ber. Baden landiv. Bot. J'er. Sta., 1896 ; ahs. in Ztschr. 

 Pjianzenkranlc., 6 {1S9G), Xo. S, p: 1S5). — Notes are given of tbe occurrence of nema- 

 todes in such soil, also ou the presence of Cusciita europaa on tobacco. 



Concerning plant injuries due to smoke, Schroedek ( Ueher die Bcsehddigung der 

 Vegetation dnrch Eaitch. Freiberg: 1S95, pp. 35 ; aha. in Ztschr. Pflanzenkrank. , 6 {1S96), 

 Xo. 3, pp. 158, 159). 



Some plant diseases in the United States and the means for combating them, 

 B. T. Galloway {Ztschr. Pjlanzcnkrank., 6 (1890), No. 3, pp. 174-178).— This, article con- 

 sists in popular descriptions of potato diseases and the means for their pi'evention. 



Concerning plant diseases in Denmark, ¥j. Rostritp {Ztschr. Pflanzenkrank., 6, 

 (1896), Xo. 3, pp. 151-155). 



On the spread of fungi by snails, G. Wagner (Ztschr, Pflanzenkrank., 6 (1896), 

 Xo. 3, pp. 144-150). 



The hot-water treatment for the prevention of smut of oats, -wheat, and bar- 

 ley, E. S. GOFF ( Wisconsin Sta. But. 50, pp. 13, figs. 5). — Tbe autlior represents dia- 

 grammatically the value of the oat crop of 1894, its cost of production, and the 

 increase that might have Iteen added to the profits had the seed oats been treated by 

 tbe hot-water method before sowing. The money value of this possible increase is 

 placed at $1,. 500,000. Directions are given for tbe treatment of oats, wheat, and barley 

 by the Jensen or bot- water method for tbe prevention of smut, tbe different utensils 

 required being fully described. 



Ceres-pulver, a newr fungicide for the treatment of smuts, AV. A. Kellerman 

 (Presented before Sec. G of the American Association for the Advancement of Science, Aug., 

 1896 ; ahs. in Science, n. ser., 4 (1896), Xo. 91, p. 438).— The author reported upon tbe 

 value of "ceres-pulver," which consists mainly of potassium sulpbid, as a means 

 for preventing oat and barley smut. The results obtained in his experiments have 

 led tbe author to recommend the use of this preparation as an efficient means for 

 preventing smut on oats and barley. Pure potassium sulpbid is also recommended. 



Spraying apparatus, S. B. Green (Minnesota Sta. Bid. 45, pp. 326-328, figs. 3). — 

 Descriptions are given of a'cheap though good spray pump and an improved strainer 

 for Bordeaux mixture. Tbe advantages claimed for tbe pump are a i)Owerfnl pump 

 adapted to all sorts of heavy work, easily worked, conveniently transported, and of 

 simple construction. Tbe strainer, which consists of a cone of copper gauze soldered 

 to a galvanized-iron rim, is said to remain unclogged better than ordinary forms. 



Spraying for fruit diseases, B. T. Galloway ( U. S. Dept. Agr., Farmers' Bui. 38, pp. 

 12, figs. 6). — This is a popular bulletin on the preparation and use of fungicides as 

 remedies for plant diseases. The results of recent investigations are stated in a con- 

 cise form, and specific directions are given for preventive treatment of the diseases of 

 tbe grape, apple, pear, quince, cherry, and plum. 



Notes on spraying, W. M. Munson (Maine Sta. Bui. 29, pp. 4, figs. 4), — Brief illus- 

 trated notes are given of different forms of spraying apparatus, together with for- 

 mulas for tbe preparation and application of Bordeaux mixture, ammoniacal copper 

 carbonate, kerosene emulsion, and hellebore. 



ENTOMOLOGY. 



The spinach leaf maggot or miner, F. A. Sirrine {ISfew York State 

 Sta. Bui 99, n. ser., pp. 20-31, pi. ]). — This bulletiu reports the results 

 of investii>atioiis of the spinach leaf maggot {Pegomi/ia vic'ma), which 

 has been proving quite injurious to the spinach crop in the market-gar- 

 den district of Long Island. It attacks both the late spring and fall 

 crops, and has been doing damage for the last 2 years, feeding upon 

 beets and lamb'squarters [Chenopod'nim album) in addition to spinach. 



The adult flies are inconspicuous, flying near the surface of the ground 



