142 EXPERIMENT STATION RECORD. 



supply is grown by farmers under special contract with seeduieu. These con- 

 tracts differ from those for the manufacture or delivery of most merchandise, 

 because of the possibility that weather and other conditions may prevent their 

 fulfillment. The farmer is cautioned against devoting his whole farm to seed 

 growing and advised to restrict his contract to the growing of a limited 

 acreage. 



HORTICULTURE. 



Notes and observations on horticulture in America, Buyssens {Min. Int. et 

 Agr. [Brussels] Off. Rural, Avis au.v Cult., 2. scr., 1910, No. 6, pp. 23, pis. 12, 

 figs. 7). — The author made a study of hoi-ticultural conditions and practices in 

 the northeastern United States and southeastern Canada. The notes and obser- 

 vations here presented are grouped under the general headings of the culture 

 of cut flowers in the open, greenhouse construction and heating, the floral deco- 

 ration of public and private gardens, and the methods of horticultural instruc- 

 tion and processes of experiment and researcli. 



Temperature an important factor in horticulture, F. W. Morse (Ann. Rpt. 

 Vt. State Hort. Soc., 7 (1909), pp. 5S-66).— This is a discussion of the funda- 

 mental principles in the relation between heat and plant growth. 



In conclusion the author expresses the opinion that our present knowledge 

 of this subject shows that the development of plants is dependent upon heat, 

 just as chemical action is dependent upon it. " Plants require an optimum 

 temperature for their different phases of life, and these phases are accelerated 

 or retarded in the same propoi'tion that chemical action is modified by heat." 



The unheated greenhouse, E. J. Castle (Loudon, pp. VI +20, figs. 2Jf). — A 

 popular booklet discussing the equipment and management of cold frames, hot 

 beds and cold greenhouses, and giving considerable information relative to 

 various plants suitable for culture therein. 



Success in market gardening-, H. Rawson (Netc York, 1910, pp. XIV +211, 

 pis. 15). — This is a revision of the work on the same subject by the author's 

 father, the late W. W. Rawson. Its aim is to present the most up-to-date 

 methods of commercial vegetable culture in the eastern United States. 



French market gardening, J. Weathers {London, 1909, pp. XV +227, figs. 

 57). — This work, which is designed especially for English gi'owers, contains 

 practical details for the intensive cultivation of vegetables. Pax't 1 discusses 

 the meaning of intensive cultivation, the history in France and the general 

 principles of intensive cultivation, implements, accessories, etc. Part 2 takes 

 up the special culture of the various market-garden vegetables, and part 3 con- 

 tains a calendar of operations for the year, together with a plan of a French 

 garden. 



Report of investigation of cabbage and cauliflower growing in Canada 

 and the United States, A. McMeans (Ann.. Rpt. Ontario Veg. Growers' Assoe., 

 5 {1909), pp. 60-98, figs. 22). — This report embodies the results of an investi- 

 gation into the cultural and marketing methods used by the leading growers 

 in a number of the principal cabbage producing States, including also informa- 

 tion relative to the status of the industry in Ontario. 



Fall and winter cabbages, C. C. Newman (South Carolina Sta. Bui. I.'i9, pp. 

 3-11, figs. 5).— The subject matter of this bulletin has been previously noted 

 from another source (E. S. R., 22, p. 640). 



Cultural experiments with cabbage in 1909, Huber (Mitt. Deut. Lnndu-. 

 Gesell., 25 (1910), No. 16, pp. 22Jf-231, figs. .3).— Tabular results are given of 

 cooi)erative variety tests of cabbage conducted under the direction of the (Jor- 

 man Agricultural Society in 1900, including data showing the relative value of 

 the different varieties for making sauerkraut. 



