FIELD CROPS. 749 



••It will be seen that, except iu the case of the potatoes, the difference between the 

 amount of water used iu the held and iu tbe plant house is relatively small. In the 

 case of the potatoes the large difference is due to the fact that iu the field trials the 

 plants did not develop perfectly." 



The completeness with which the water is utilized by crops in the 

 field and iu the plant house is briefly discussed. 



Agriculture in Russia, C. Courrikre (Jour. Agr. Prat., 1S99, I, No. 1, pp. 22-24).— 

 A note on tbe conditions of Russian agriculture. 



Wobum Experimental Farm: Tabulated results of experiments, J. A. 

 Voelcker (Jour. Boy. Agr. Soc. England, 3. ser., 9 (1898), pt. 4, No. 36, pp. 678-726) .—The 

 results of rotation tests and experiments on the continuous growth of wheat and 

 barley for the years 1877 to 1897, inclusive, are given in tables and the plan of the 

 experiments is briefly outlined. An account of some of this work has been noted 

 from a previous volume of this publication (E. S. R., 9, p. 199). 



Reports of the department of agriculture and horticulture, F. A. Huntley 

 (Idaho Sta. Hid. 11, pp. 145-149). — This report briefly outlines tbe work performed in 

 the line of agriculture and horticulture by the station iu 1897 and presents plans for 

 the work during the season of 1898. The work consists mainly of variety, and cul- 

 ture tests of grain, grasses, and garden crops. 



The castor-oil plant (Jour. Jamaica Agr. Soc, 2 (1898), No. 12, pp. 528-530).— Rotes 

 on the culture of the plant and the preparation of the seeds for the oil mill. 



The culture of coffee in Mexico, H. A. Turnbull (Bol. Repub. Mexicano, 2 (1898), 

 pp. 161-169).— A popular article describing the coffee industry of Mexico. 



A few hints on maize growing, H. A. Tardext (Queensland Agr. Jour., 3 (1898), 

 No. 6,p>p. 411-420, pis. 2, figs. 4). — Notes are given on the preparation of the land, the 

 selection of seed, and the planting, harvesting, storing, and marketing of the crop. 



Growing and breeding oats, A. Kirsche (Deut. Landtv. Presse, 26 (1899), No. 6, pp. 

 45, 46, figs. 2). — A report on experiments in breeding oats, with measurements and 

 weights of the plants obtained. 



The potato, A. W. Sutton (Jour. Roy. Agr. Soc. England, 3. ser., 9 (1S98), pt. 4, pp. 

 581-653, figs. 58). — This illustrated monograph discusses the natural distribution of 

 the potato and its introduction into Europe; deterioration of cultivated varieties; 

 the diseases which attack the plant, and the means to prevent them ; the manuring 

 of the crop, its composition and comparative food value, and the practice of modern 

 potato culture. The habitat of other tuber-bearing species of Solanum is discussed 

 and varieties of potatoes in different parts of the world are described. The different 

 practices in potato culture in various parts of England, Scotland, and in the Chan- 

 nel Islands are outlined. 



Experiments with potatoes, C. Fruwirth (Fiihling's Landiv. Zlg.,47 (1898), No. 

 24, pp. 921-923).— -This article reports the results of variety tests, distance experi- 

 ments, tests of using whole tubers or different-sized cuttings for seed, and a trial of 

 treating seed tubers for the prevention of scab. 



New plants for field culture, A. Dubois (Jour. Agr. Prat., 1899, 1, No. 3, pp. 90-92, 

 figs. 3). — Notes on a new variety of potatoes, a new hybrid wheat, and canaigre. 



Experiments with sugar beets in 1897, II. W. Wiley ( U. S. Dept. Ayr., Division 

 of Chemistry Bui. 5.', pp. 105, figs. 2, maps 2).—X reprint from the special report on 

 the beet-sugar industry in the United States, 1897 (see p. 740). 



The culture of beets and beet seed, P. Doerstling (FiikUngs Landw. Ztg., 47 

 (1898), No. 22, pp. 857,858).— A popular note. 



The velvet bean (Florida Agr., 25 (1898), No. 13, p. 196).— Notes are given on the 

 value of the velvet bean as a soil renovator and forage crop, with directions for its 

 culture. 



Florida velvet bean (Jour. Jamaica Agr. Soc., 3 (1899), No. 1, pp. 14-16). — A gen- 

 eral discussion of the value of the velvet bean and its botanical relationship. 



