538 EXPERIMENT STATION RECORD. [Vol. 41 



Eradication of weeds by sprays and manures, W. E. Brenchley (Jour. Bd. 

 Ayr. [London'^, 25 {1919}, No. 12, pp. 147^-1482). — The author discusses in a 

 general manner the utilization and relative value in the eradication of weeds 

 of chemical sprays, such as copper sulphate, iron sulphate, sulphuric acid, etc., 

 and of finely ground materials applied as dusts, including calcium cyanamid, 

 kaiult. common salt, and lime. It is concluded that although no definite recom- 

 mendations are justified at the present time the use of finely ground materials 

 offers marked possibilities in weed control in addition to such beneficial manu- 

 rial effects as the material might exert on the crop. 



HORTICULTURE. 



Practical vegetable gardening, J. Bottner {Praktische Gemusegartnerei. 

 Frankfort on the Oder: Trowitssch d Son, 1919, 9. rev. and enl. ed., pp. II-{-386, 

 figs 355). — A treatise on the principles of vegetable gardening, including spe- 

 cific dix-ections for growing various crops. 



Grow your own vegetables, S. C. Johnson (London: T. Fisher Unwin, Ltd., 

 [1918]. p. 199, figs, 119). — A practical handbook on home vegetable gardening 

 in England. 



The garden frame for food and flowers, W. F. Rowles (London: C. Arthur 

 Pearson, Ltd., 1919, pp. 112). — A practical treatise on the use of the hotbed and 

 cold frame, based upon the author's long experience as a gardener in various 

 parts of England and Scotland. 



[Report on horticultural work for the year ended March 31, 1918], W. T. 

 Macoun et al. (Canada Expt. Farms Ri)t. 1918, pp. 10, 12, 13, U, 15, 32, 33, 34, 

 35, 64, no, 75, 76, 81, 82, 97, 98, 101, 102, 103, 105, 106, 107, 109, 110, II4, 117, 

 lis, 120, 123, 127, 131, 134, 1^8, I44, 147).— A brief progress report on horticul- 

 tural work at the Central Farm, together with notes on tests of fruits, vege- 

 tables, and ornamentals at the branch farms and stations, and continuing pre- 

 vious work (E. S. R., 40, p. 741). 



The carob in California, I. J. Condit (California Sta. Bui 309 (1919), pp. 

 43I-44O, figs. 6). — An account of the carob (Ceratonia siliqua), with reference 

 to its introduction into California, botany, climatic, and soil requirements, 

 propagation, planting, yield, and varieties. 



Notes on the dasheen and chayote, H. W. Youngken (Amer. Jour. Pharm., 

 91 (1919), No. 8, pp. 498-510, figs. 15). — Notes on the histology of the Trinidad 

 dasheen and the chayote, including general notes on their cultural status in the 

 United States. 



Hardy fruit culture, C. F. Laweance (London: Evans Brothers, Ltd., [1919], 

 pp. [IV]+80, figs. 31). — A small treatise on home fruit gardening in England. 



The fruit growers' yearbook and market gardeners' guide, 1918 (Fruit 

 Growers' Yearbook [London], 26 (1918), pp. 164, pl-^- -'/)• — This annual contains 

 a number of articles relating to fruit and vegetable growing in Great Britain, 

 and includes a monthly working calendar for outdoor and indoor work. 



Decade records In Ohio apple orchards, Nos. 2 and 3, H. A. Gossard (Mo. 

 Bui. Ohio Sta., 4 (1919), Nos. 6, pp. 171-178, figs. 5; 7, pp. 203-208, figs. 5).— 

 These papers record the results secured from long-continued spraying tests 

 in the second and third of three representative Ohio orchards (E. S. R., 41s 

 p. 239). The method of conducting the tests, as well as cultural and market- 

 ing practices, are briefly described. Yields, financial returns, and the record 

 of worminess for each year under different spray treatments are presented in 

 tabular form. The results as a whole indicate that spraying for worminess 

 has been highly profitable. 



