194 REPORT OF OFFICE OF EXPERIMENT STATIONS. 



contains notes on the management of cows on pasture in relation to 

 bloat, and a general summary. 



Bulletin 69, pp. SO.— The Golden Vine Field Pea.— Results of 

 investigations of the chemical composition of the whole plant, leaves, 

 stalks, and flowers of the Golden Vine field pea at different stages of 

 growth; data on the yield per acre; results of artificial digestion experi- 

 ments with the whole plant and different parts; and discussions of the 

 food value of this plant and related topics. 



Bulletin 70, pp. 70, pis. J+. — Experiments in Pork Production. — Tests 

 covering several years are reported of summer feeding of pigs in which 

 the value of mixed pasturage, alfalfa pasturage, and the effects of 

 exercise were the principal questions studied and of winter feeding, in 

 which a special study was made of the value of roots and alfalfa. 

 Tests of the feeding value of rape and of the comparative value of bar- 

 rows v. sows and of spayed v. unspayed sows are also reported, and 

 several general questions bearing on the investigations are discussed, 

 including the effects of feeding balanced rations, wet and dry grains, 

 skim milk and grain, and whole milk and grain. 



Bulletin 71, pp. 56, Jigs. 1$. — Carrying Capacities of Irrigation 

 Canals. — This is a report of 64 experiments made during the summer 

 of 1897 on irrigation channels varying in size from small ditches 

 carrying a few miners' inches to large canals carrying as high as 225 

 second-feet, and including nearly every form of ditch common to 

 Western America. Objects sought were to ascertain the existing 

 condition of ditches and carfals which had been in operation for a 

 number of years, to determine the values of the coefficient of rough- 

 ness under different conditions, and to ascertain the form which chan- 

 nels assume when acted upon by water and the atmosphere. 



Annual Beport, 1900, pp. 76, pis. 10. — This contains a report of the 

 director reviewing at some length the history, organization, equip- 

 ment, work, and publications of the station; a subject list of Bulletins 

 1-70 of the station; a financial statement for the fiscal year ended 

 June 30, 1900; list of exchanges; and departmental reports giving out- 

 lines of investigations in horticulture, irrigation, poultry raising, 

 chemistry, dairying, and stock feeding, together with meteorological 

 observations and some of the results of work along different lines, 

 including forcing and irrigating vegetables and feeding experiments 

 with steers and sheep. 



GENERAL OUTLOOK. 



The administratiion that took charge of the station September 1, 

 1900, found that experiments which had been in progress for many 

 years had been completed, and hence devoted much necessary time to 

 the work of perfecting plans for new experiments and inaugurating 

 some of them. Irrigation was wisely chosen as the central subject of 



