AGRICULTURAL ENGINEERING. 85 



Should the farmer supply his farm w^ith a hand cream separator or sond his 

 milk to a cooperative creamery of vrhich he is a member ? {Jour. Assoc. Anc. 

 £lev. GemhloHX, 7 {1894), No. 9, pp. S04-S11). 



Souring of cream by means of pure cultures, N. Engstrom {Xord. Mejeri Tidn., 

 9 {1894} , pp. 221, 222, 233.) 



Finnish exports of butter to England ( Tidn. lfjolkhu.shdUninn, 3 (1894), p. 74). 



Important questions for creameries and patrons, V. Miclandek {Stockholm : 

 1894). 



Experiments made in the manufacture of cheese during the season of 1892, 

 L. L. Van Slyke {Xew York State Sta. Rpt. 1892, pp. 299-467).— A summary of the 

 experiments of the season reprinted from Bulletin 50 of the station (E. S. R., 4, p. 945). 



The bacteriology of cheese-making, P. Hellstr5m {Nord. Mejeri Tidn., 9 {1894), 

 pp. 185, 107, 198, 209, 210). 



Concerning a new method of preventing the green coloration of cheese, G. 

 Sautoki [Staz. Spew Arjr. Ital., 26 {1894), No. 3, pp. 26.5-269).— \u account of the 

 author's experiments in which copper vessels, bright or tarnished, and tinned iron 

 vessels were used. 



Manufacture of skim-milk cheese {Tidn. MjolkhusMllning, 3 {1894), jJ- 74. 



Cheshire chee3e, C. M. Blades (Analyst, 1894, June, pp. 131-133). 



Analysis of cheese from centrifugalized milk, L. Carcano (Annuario delta E. 

 Staz. Sper. Caseijicio in Lodi, 1892, pp. 84-87). 



The more important experiments in dairying at the experiment stations in 

 North America, M. Wilckexs (Molk. Ztg., 8 (1894), No. 19, pp. 273, 274; No. 21, pp. 

 305, 306, and No. 22, pp. 321-323).— Briof accounts of dairy iuvestij,'ations at the 

 Delaware, Indiana, Iowa, New York State and Cornell, Pennsylvania, and Vermont 

 Stations and the Ontario Agricultural College and Experimental Farm. 



Dairy schools and dairy products, F. W. Woll {Foj). Sci. Monthly, 1894, June, 

 pp. 234-243). 



AGRICULTURAL ENGINEERING. 



Pumping water for irrigation in southwestern Arizona, F. A. 

 GuLLEY and 0. B. Collingwood {Arizona 8ta. Bui. 11, pp. 17-24), — 

 This is au account of experiments near Yuma, Arizona, to test tlie 

 economy of pumping water from the Colorado Eiver up to a mesa 80 

 ft. above its level to be used in the culture of " tender and early fruits 

 and vegetables." 



A company Las put in a plant which purposes to deliver water on 

 this mesa "at the rate of $12 per annum per acre for 2i acre-feet. . . . 

 This is at the rate of 20 cts. per day for 1 miner's inch of water." 



"At first glance, elevating water 80 feet to he used for irrigation purposes in a cli- 

 mate as dry as that of Yuma may seem too costly to he profitable, and it perhaps 

 would for growing ordinary farm crops, but the mesa soils of southwestern Arizona, 

 when irrigated, will produce crops of the highest value per acre, owing to their 

 being exempt from injurious frosts. 



"From the tests made last winter and this, we find that peas and strawberries may 

 be ripened at anytime during the winter or spring, the main crop of the latter 

 being ready to ship the latter part of March. 



"Asparagus is ready for mariiet Febrnary 25, wax beans and summer squash April 

 15, and tomatoes May 15 to 25. 



"In the town and valley near by the early varieties of grapes begin to ripen June 



