96 AGRONOMY [Box. Absts., Vol. VII, 



632. Morgan, G. W., and A. E. Seamans. Dry farming in the plains area of Montana. 

 Montana Agric. Exp. Sta. Circ 89:1-22. 1920. — The circular discusses the leading crops 

 for the great plains — wheat, oats, barley, corn, and flax — mentioning uses and the varie- 

 ties best adapted. Corn is a reliable source of fodder. Native grasses, brome grass, and 

 alfalfa are recommended for permanent pastures, while alfalfa, brome grass, sweet clover, and 

 small grains all make good hay; and in some sections sorghums, millets, and Sudan grass 

 have been successfully grown. — H. E. Morris. 



633. MuNDY, H. G. The cultivation of rice. Rhodesia Agric. Jour. 17:321-324. 2 fig. 

 1920. 



634. MuNDY, H. G. The cultivation of rice in southern Rhodesia. Rhodesia Agric. 

 Jour. 17:243-246. 1920. 



635. MuNN, M. T. The New York seed law and seed testing. New York Agric. Exp. Sta. 

 [Geneva] Bull. 476. 28 p. 1920. Chiefly a discussion of the provisions of a recently-enacted 

 seed law, which requires that agricultural seeds offered for sale in the state of New York 

 shall be labeled, so as to show their purity and viability. — F. C. Stewart. 



636. Newton, V/. Soil treatment for the Nechako Valley. Agric. Jour. [British Colum- 

 bia] 5: 202-203. 1920. 



637. Newton, W. The quality in potatoes. Agric. Jour. [British Columbia] 5: 152. 1920. 



638. Oswald, H. Untersuchungen iiber die Einwirkung des Grundwasserstands auf die 

 Bewurzelung von Wiesenpflanzen auf Moorboden. [Investigations concerning the effect of 

 ground water level upon the root development of meadow plants on moor soils.] Fuhlings 

 Landw. Zeitung. 68: 321-340, 370-386. 1919.— The studies were conducted on two types of 

 moor soil, lowland moor and highland moor. The ground water level was maintained at 

 different heights in different pots, and a mixture of clover and grass seeds was sown. Details 

 are given of the yields and root development of the clovers and various grasses in the pots. 

 The root development was determined at the end of the 5th year, when it was found that 

 in low moor soil practically half the roots were those of sword grass; this grass together with 

 meadow fescue and orchard grass made up 81 to 98 per cent of the total root content in the 

 various pots. The great bulk of grass roots was found in the upper 10 cm. of soil. Sword 

 grass, orchard grass, and meadow fescue were found to have the deepest root systems; 

 these penetrated to the water table in the deepest soil. For particulars of the proportion of 

 roots of the different grasses and the depth to which they penetrated with water tables at 

 varying levels, the reader is referred to the original. The article is accompanied by a long 

 bibliography. — A. T. Wiancko. 



639. Petersen, Fe DERI CO. Los trigos seleccionadas de la hacienda Amalucan. [Selected 

 wheats at hacienda Amalucan.] Rev. Agric. [Mexico] 5: 112-118. 4 fig. 1919. — The results 

 of tests of 3 selected wheat varieties, Flor, Maravilla I, and Maravilla II in comparison with 

 unselected varieties are given. The tests were carried out on 36 farms, the selected varie- 

 ties giving greatly increased yields as well as proving more resistant to drouth and rust 

 {Puccinia spp.). Tests were also made on different soil types and with different cultivation 

 methods. — John A. Stevenson. 



640. Pitt, J. M. Broom millet on the Manning. Agric. Gaz. New South Wales 31: 637- 

 644. 6 fig. 1920. — Cultural and other notes are given for this crop, Holcus Sorghum L. — 

 L. R. Waldron. 



641. Pole Evans, I. B. South African fiber plants. Ambari or Deccan Hemp: Hibiscus 

 cannabinus, L. Jour. Dept. Agric. Union of South Africa 1 : 570-580. 6 p'. 1920. 



