1919] FIELD CROPS. 529 



R., 40, p. 523) variety, cultural, and fertilizer tests with rice, sesame, wheat, 

 peanuts, beans, cotton, sugar cane, tobacco, fiber crops, and miscellaneous 

 forage crops are briefly described for the year ended .Tune 30. 1918. 



[Field crops ill Burma], H. Adamson {Bui. Imp. Inst. [So. Kensington], 16 

 {1918), No. 1, pp. 50-54). — In an article entitled The Material Resources of 

 Burma the author presents information relative to the area occupied by the 

 principal field crops, together with their respective yields. The crops dis- 

 cussed include rice, sesame, millet, beans, peanuts, cotton, corn, wheat, gram, 

 sugar cane, and tobacco. 



[Field crops in Ceylon], W. Molegode, B. F. Scherffius, C. Drieberg, and 

 D. S. CoRLETT {Ceylon Agr. Soc. Year Book, 1919-20, pp. 62-68, 72-75).— Bviet 

 notes are given on the production of rice, tobacco, dhall {Cajamis indicus), 

 cotton, kapok, and castor in the island. 



[The progress of crop investigations iu India, 1917—18] {Rpt. Prog. Agr. 

 India, 1917-18, pp. 11-55, 60-63, 73, 74. pis. 2).— This comprises a summary of 

 work done in various parts of India to improve the different field crops and 

 to increase production. The crops dealt with include wheat, rice, cotton, 

 sugar cane, jute, indigo, tobacco, oil seeds, and miscellaneous forage crops. 



[Report of field crops work in South Australia, 1918—19], W. J. Spafford 

 (Jour. Dcpt. Agr. So. Aust., 22 {1919), No. 7, pp. 527-53 ff).— The progress of cul- 

 tural, variety, and fertilizer tests with wheat at Hammond, Butler, and Wilka- 

 watt is descri?3ed as heretofore (E. S. R., 40, p. 332). 



Constructive rotations: Considerations in fertility, crops, drainage, and 

 farm labor, J. F. Barker {Mo. Bid. Ohio Sta., 4 {1919), No. 7, pp. 209-214, fig. 

 1). — In a contribution from the department of agricultural chemistry and soils, 

 Ohio State University, the author discusses in a general manner practical 

 systems of crop rotation for soil improvement in the State. 



The temporary ley, R. G. Stapledon {Jour. Bd. Agr. [Lo7idon}, 25 {1919), No. 

 11. pp. 1280-1311). — Recommendations, based on rather extensive observations 

 in England and Wales, are made relative to what are deemed to be adequate 

 mixtures of legume and grass seeds for temporary pastures. Information is 

 also presented shovv-ing the year of maximum yield and the probable duration 

 of the various species included in the different seed mixtures, as well as the 

 date of appearance and maximum development of the indigenous species when 

 commercial seed is not sown. 



The grasses and grasslands of South Africa, J. W. Bews {Pietermaritzhurg : 

 P. Davis d Sons, Ltd., 1918, pp. VI +161, pi. 1, figs. 24; rev. in Jour. Ecology, 7 

 {1919), No. 1-2, pp. 84-87). — This work is said to comprise a preliminary con- 

 tribution to a study of plant ecology in South Africa and also to supplement 

 a previous paper on plant succession (E. S. R., 37, p. 526). A simplified key to 

 the genera and species of South African grasses has been prepared and ecologi- 

 cal notes on the principal species of each genus included. The development 

 of the grasslands of different sections of South Africa is discussed in some 

 detail, and various economic aspects of the subject are mentioned. 



A list of English, Dutc]i, Zulu, and Sesuto names of grasses is appended. 



[Grasses for paper making in the Union of South Africa], C. F. Juritz 

 ([Union So. Africa, Min. Mines and Indtis.], Indus. Bui. Ser., No. 7 {1919), pp. 

 iy+115). — This comprises rather detailed reports on the grasses of the eastern 

 coast belt available for the manufacture of paper, and on the possibilities and 

 prospects of paper making in the Union of South Africa, together vrith a com- 

 prehensive discussion of the history and of technical and industrial aspects 

 of the subject and of raw materials suitable for paper making in South Africa. 



Methods of selection applied to the cereals, J. Beauverie (Rev. CJen. ScL, 

 30 (1919), Nos. 3. pp. 79-87: .}, pp. lOS-lJ',).— This comprises a general discus- 



