734 EXPERIMENT STATION EECOED. 



It Lias been found that Peruvian alfalfa can be grown to greatest advantage 

 only under irrigation and in the Southwest where the climate is mild in winter. 

 The low zero point of growth has the advantage of making growth possible 

 during an imusually long season, but on the other hand it is responsible for tlie 

 presence of tender tissue when cold weather comes, which necessarily lowers its 

 winter resistance. 



Alfalfa, " the grass " in Ohio, A. O. Myers {('olumhus, Ohio, 1907, pp. /.S7, 

 pis. 15). — This is a popular book on the culture, uses, and value of alfalfa in 

 Ohio, devoted largely to giving the author's personal experiences with this crop. 



Barley crops of the United States, 1866-1906, C. C. Clark ( f/. *S'. Dept. 

 Ayr., Bar. Statis. Bid. iJ'J. pp. 36). — This bulletin contains in tabular form the 

 acreage, production, and value of barley in the Ignited States by States and by 

 years from l.SGG to lOOO, inclusive. 



The culture and uses of brome grass, R. A. Oakley (U. S. Dept. Agr., Bur. 

 Plant IiiihiH. Bui. Ill, pt. 5, pp. lo, pis. 3). — This bulletin contains brief discus- 

 sions on methods of culture and the uses and value of brome grass, including 

 notes on growing the species with other grasses and clovers, on the seed produc- 

 tion of this grass, and on its use in crop rotations and the preiyaration of brome 

 grass sod for succeeding crops. 



Harvesting and storing corn, C. P. Hartley (U. S. Dept. Afir., Farmer.'i' 

 Bui. 313, pp. 32, figs. 17). — The different methods of harvesting corn, including 

 the making of corn silage, cutting and shocking, husking from the standing 

 stalks, and jerking and storing the ears uuhusked are discussed. The. use of 

 corn-picking machines and of buskers and shredders is noted, and the storing 

 of the stover and the ears is considered. 



Corn crops of the United States, 1866-1906, C. ('. Clark (U. N. Dept. Agr., 

 Bur. Statin. Bui. oG. pp. 37). — Tal)lcs are given in this bulletin, showing the 

 average acreage, iiroduction, and value of eorn in the Tnited States by States 

 and by years for the period 1SG6-1U0G. 



The cotton plant: Its development and structure and the evolution and 

 structure of the cotton fiber, A. Flatters {London and Mauehestcr, 1906, pp. 

 02, pis. 31). 



The Indian cottons, G. A. Gammie (Caleutta: Gort., 190.'), pp. 3H, pis. 9, 

 maps 2). — This publication gives a general description of the cultivated cottons 

 of India, classifies them into groups and species, and presents an outline of their 

 distribution, together with a list of the varieties of cotton tested at Po.ona. The 

 following species of cotton are represented in India : (lossijpium ohtuxifolium, G. 

 arhoreum, G. sanguineum, G. herhaeemn, G. intermedium, G. indieum, G. neglcc- 

 ium, G. cernuum, and G. hirsutum. 



Cotton in western French Africa, Y. Henry (Le Coton dans VAfrique Oeei- 

 dentale Francaise. Paris, 1906, pp. 3Jf6, figs. 6.'/, maps 5). — This book describes 

 cotton culture and the cotton industry in Senegambia, Sudan, and Dahomey, 

 and devotes several chapters to the ginning and baling of cotton and to scientific 

 experiments in the culture and selection of the plant. 



Oat crops of the United States, 1866-1906, C. C. Clark (U. ^'. Dept. Agr., 

 Bur. Statis. Bui. 58, pp. 35). — This bulletin presents in tables the acreage, pro- 

 duction, and value of oats in the United States by States and by years from 

 18G6 to mOG, inclusive. 



Potato culture, H. Werner (Kartoffelhau. Berlin, 1906, pp. 231, figs. 16).— 

 This book appears as one in the series of agricultural works known as the 

 Thaer liibliothek. The different subjects discussed are species and varieties, 

 biological characteristics, diseases, insect enemies, climatic and soil require- 

 ments, and the culture, storing, and uses of the crop. 



