236 EXPERIMENT STATION RECORD. [Vol. 41 



tlie number of growers of various classes of field seeds who follow certain 

 practices in testing, cleaning, and marketing their seed. Tentative seed pro- 

 duction and consumption maps are presented showing the counties in the 

 United States reported as normally producing either a surplus, a sufficient, or 

 an insufficient quantity compared with their planting requirements of seed of 

 redtop, Kentucky blue grass, orchard grass, Canada field peas, cowpeas, and soy 

 beans. 



Tlie establishment in England of the National Institute of Agricultural Botany 

 for the inci'ease and dissemination of improved strains of field and garden crops 

 is briefly noted. 



The usual statistics regarding imports of forage plant seeds permitted entry 

 into tlie United States are included. 



Pure seed law and the weed control act, I'. Wexukr {Idaho Sta. Circ. 8 

 {1919}, pp. 12). — The test of both the pure seed law and the weed contrcd act is 

 presented and briefly discussed, together with rulings pertaining to seed inspec- 

 tion and analysis. 



HORTICULTURE. 



The book of the home garden, E. L, Fulleeton {New York and London: 

 D. Appleton & Co., 1919, pp. XX +260, figs. 77). — ^A popular treatise on the cul* 

 ture of vegetables, fruits, and flowers in the home garden. 



Vegetables and their cultivation, T. W. Sanders {London: 11'. II. A L. Col- 

 Unffridyc, 1911, 4. cd., pp. XV +^,96, pis. 13, fiys. 150).— A guide to the history, 

 cultivation, and forcing of culinary vegetables, salad crops, and herbs for home 

 use and exhibition ; also the formation of the vegetable garden ; the management 

 of soils ; manures and their uses ; the eradication of injurious insect and fun- 

 goid pests; etc. 



A handbook of vegetable culture, W. Molegode {Colombo, Ceylon: Times of 

 Ceylon Co., Ltd., 1918, 2. ed., rev. and enl., pp. IX-\-12.'f).: — Specific directions 

 are given for the culture of various vegetables adapted to Ceylon, including 

 general instructions on vegetable growing. 



Bud variation as a practical asset in horticulture, M. J. Doesey {Minn. 

 Hort., 46 {191S), Xo. 8, pp. 30.'{-311, fiys. 2).— A contribution from the Minnesota 

 Experiment Station, discussing the types of variations which occur in horticul- 

 tural plants, the extent to which these types occur, the use that has been made 

 of them in horticultural practice, and the influence of selection in horticultural 

 varieties. 



A review of the literature shows that bud variation may affect such impor- 

 tant commercial fruit characters as color, season, size, growth, habit, and yield. 

 These variations, liowever, have not been much of a factor in the origin of new 

 vai'ieties in the apple, cherry, plum, or grape, but have been in ornamentals and 

 flowers. The work of bud selection by Shamel and others witli citrus (E. S. K., 

 38, p. 541) has lieen more successful than with other fruits. The author con- 

 cludes that the question of selection in the navel orange resolves itself down to 

 a basis of vrorking with differences that are constantly arising within the 

 variety. When such differences arise within the varieties of any other fruit bud, 

 selection has an imj)ortance other than that of developing new varieties for, "if 

 by selecting automatically from the better tyjies we are not selecting from the 

 poorer types, then the procedure acts to hold the type stable." 



The effect of the frosts of the winter of 1916-17 on vegetation, E. A, 

 Bowles {Jour. Roy. Hort. Soc, Jf3 {1919), No. 2-3, pp. 388-/(61).— A report on 

 this subject to the Royal Horticultural Society, based i>n evidence received from 

 important gardens in different parts of Great Britain. The general conditions 



