HORTICULTURE. 833 



alsike, crimson, and white clover, alfalfa, and vetch. (Comments are given 

 on the official samples, and the methods of taking and sending samples to 

 the seed laboratory are described. The text of the New Jersey seed law is 

 included. 



HORTICTJLTTIRE. 



Subtropical vegetable gardening, P. H. Rolfs (Neto York: The Macmillan 

 Co., 1916, pp. XV I II +309, pifi. 16). — A practical treatise on vegetable growing 

 In subtropical countries. Although the subject matter is based primarily on 

 Florida practice, the author has also drawn on the results of horticultural 

 investigators in this country as well as on the horticultural literature of tropi- 

 cal countries. 



The first or general part of the work discusses soils and manures for vege- 

 table gardening in warm countries, fertilizers, rotation of crops in vegetable 

 gardening, water and watering, seeds and seed sowing, planting, pests and 

 diseases, and marketing. The succeeding chapters take up the various classes 

 of vegetables with reference to their specific cultural treatment. Short refer- 

 ence lists are given of publications dealing with the more important vegetables. 



Vegetable culture, H. A. Van Hermann and R. S. Cunliffe {Estac. Eipt. 

 Agron. Cuba Circ. 51 (1916), pp. 75, figs. 18). — This circular discusses the gen- 

 eral principles of vegetable growing, and gives specific directions for the culture 

 of various kinds of vegetables adapted for culture in Cuba. 



Cabbage, J. C. C. Price and G. V. Stelzenmxtllee {Alabama Col. Sta. Bui. 

 187 {1916), pp. 3-20, figs. 2).— This bulletin gives the results of fertilizer ex- 

 periments and variety tests with cabbage conducted under the direction of the 

 station, together with general directions for growing cabbage based upon the 

 experiments, and including notes on insects and diseases. 



Early peas tried at Wisley, 1915, C. C. Titchmabsh {-lour. Roy, Eort. Soc, 

 41 {1915), No. 2, pp. 277-289, pi. 1). — A report on varieties of garden peas under 

 observation at Wisley in 191.5. 



Factors affecting regular bearing in orchards, J. E. GorBiiT {Agr. Student, 

 22 {1916), Xo. 7, pp. 465-Jf70, fig. 1). — This article summarizes the results of 

 experiments at the New Hampshire Experiment Station in plat tests of fruit 

 trees with fertilizers, cultivation, mulching, liming, and cover crops ; and of 

 the effect of girdling and pollination, previously noted (E. S. R., 33, p. 44). 



Bridge grafting of fruit trees, W. F. Fletcher ( U. S. Dept. Agr., Farmers' 

 Bui. 710 {1916), pp. 8, figs. 7). — In this publication the author discusses the 

 range of usefulness of brid^'e grafting and gives detailed instructions for 

 bridge grafting. Suggestions are also given for the prevention of injuries by 

 mice, rabbits, and borers, together with a list of Department publications relat- 

 ing to animals and insects that are likely to girdle trees. 



Pruning, W. H. Chandler and H. B. Knapp {Cornell Reading Courses, 5 

 (1916), No. 104, PP- 73-96, figs. 27).— A popular treatise on the methods of 

 pruning various fruit trees and bushes. 



Apple and pear growing, W. J. Allen (Dept. Agr. N. S. Wales, Farmer^ 

 Bui. 92 (1915), pp. 74, pis. 2, figs. 49). — A practical treatise on the establish- 

 ment and management of apple and pear orchards, including descriptions of 

 varieties. A section on insect pests of the apple and pear, by W. W. Froggatt 

 and W. B. Gurney (pp. 27-^7), is also given. 



Grass mulch, culture of apple orchards, F. H. Ballou (Agr. Student, 22 

 (1916), No. 7, pp. 471-475, figs. 4)- — A popular .summary of combined mulching 

 and chemical fertilizer experiments in apple orchards being conducted at the 

 Ohio Experiment Station. 



