640 EXPEEIMENT STATION EECOED. [Vol.36 



figs. 215). — The present edition of the author's work (E. S. R., 15, p. 674), 

 which is one of a series constituting the agricultural encyclopedia published 

 under the direction of G. Wery, has been completely revised to include more 

 recent knowledge relative to amateur and professional gardening practices. 



[Overhead irrigation results in 1916], E. F. Palmeb {Agr. Gaz. Canada, 

 4 (1917), No. 2, pp. 125-127, fig. 1). — Some data are given on tests of overhead 

 irrigation conducted with raspberries and vegetables by the Ontario Horti- 

 cultural Experiment Station, Vineland, in 1916. The results in brief indicate 

 that overhead irrigation may be used with considerable profit during periods 

 of drought. 



Cucumber growing, C. P. Haxligan {Michigan Sta. Circ. SO {1916), pp. 4). — 

 A revision of Circular 19 of the station previously noted (E. S. R., 29, p. 145). 



Commercial onion growing, C. B. Sayee {Indiana Sta. Circ. 57 {1916), pp. 

 27, figs. 12). — This circular describes the most successful practice in the 

 commercial production of onions on the muck lands of northern Indiana. The 

 subject matter is based upon observations, correspondence, and special field 

 studies conducted by the author in 1915 and 1916, supplemented by observa- 

 tions made by W. E. Lommel in 1915. In addition to details for growing, 

 harvesting, and marketing the main onion crop, information is also given 

 relative to the production of onion sets, onions for pickling, and onion seed, 

 including directions for the control of insects and diseases. 



The use of brine tank refrigerator cars for fruit shipments {Agr. Gaz. 

 Canada, 4 {1917), No. 2, pp. IIO-II4, figs. 8). — A summarized account of experi- 

 ments conducted with the brine tank refrigerator car by the Dominion Depart- 

 ment of Agriculture during the season of 1916. With the use of 5 per cent 

 salt and crushed ice in conjunction with slatted floor racks a good brine tank 

 car has given very much more satisfactory results than a poor block ice car. 



The relation of fruit growing to soil fertility, R. C. Thompson {Arkansas 

 Sta. Bui. 123 [tech. ed.] {1916), pp. 3-20). — A technical edition of the bulletin 

 previously noted (E. S. R., 36, p. 39). 



The Indiana farm orchard operating costs and methods, C. G. Woodbury, 

 M. W. RicHABDS, and H. J. Reed {Indiana Sta. Bui. 194 {1916), pp. 3-79, figs. 

 56). — This bulletin discusses the conditions of success in the renovation and 

 operation of farm orchards, outlines the conditions underlying successful 

 fruit growing in such a way as to enable orchard owners to form a correct 

 judgment in regard to their own opportunities, and presents figures on opera- 

 tion costs in several farm orchards as summarized from records compiled during 

 the last five years. 



The data on operation costs were secured from eight orchards located in 

 several fruit-growing districts of the State and ranging in size from 4 to 80 

 acres. The cost of the various operations are given in detail in most cases for 

 each season and averaged for the 5-year period, both for the individual 

 orchards and the orchards as a whole. Summarizing the data as a whole for 

 all of the orchards during the 5-year period the total management cost was 

 $1.37 per tree, $56.68 per acre, 44.7 cts. per bushel, and $1.35 per barrel. The 

 average yield per acre was 232.4 bu. 



On the cause of alternate bearing in the apple, O. Butlee {Bui. Torrcy 

 Bot. Club, U {1917), No. 2, pp. 85-96, pis. 3, fig. i).— After reviewing the in- 

 vestigations conducted at the New Hampshire Experiment Station, as well 

 as at other state stations and abroad, the author concludes that to obtain 

 regular fruitfulness in apple trees of bearing age the yearly departures from 

 the mean growth must be small. Pruning may be considered as the most 

 potent means of regularizing bearing; in fact, the only really effective means 

 of accomplishing this object 



