172 EXPERIMENT STATION EECORD. 



potatoes may be profitably fed to pigs when they do not cost more than $1.50 

 per 100 lbs. and freight charges are not excessive. 



Cotton-seed meal for poultry, T. W. Gaw (Breeder's Gaz., 51 {1901), No. 

 20. p. 112')). — On tlie basis of personal experience, the value of cotton-seed 

 meal as a part of a dry mash for ponltry is pointed out. 



Improvement in horse breeding, S. O. Wood (Jour. Dept. Agr. Victoria, 

 .') (1907), No. 3, pp. 1.38-1.52. figs. 5). — Recommendations which include as 

 special features the licensing of stallions and the discouragement of the expor- 

 tation of mares were formulated after a study of the horse-l)reeding situation 

 at home and abroad. 



Intelligent management of plantation stables, W. H. Dalrymple (Baton 

 Rouge: Ortlieh's Printing Houne. 1907, pp. 20). — In a paper presented before a 

 meeting of the Louisiana Sugar Planters' Association, the author discusses the 

 purchase of nudes, care of manure, foods and feeding, water supply, the adjust- 

 ment of different parts of harness aiid related questions with special reference 

 to the comfort of the animals and the possibilities of greater profits from good 

 management. 



Taming zebras and their use in the Kongo state, H. Ross (Tropciipflanzer, 

 11 (1907). No. J,, pp. 23S-2Ji.'i. fig. 1). — A sunmiary of Nys' experiments with 

 zebras which led to the conclusion that they may be tamed and made useful 

 draft animals. 



Ostrich growing and the production of ostrich feathei's in the Cape of 

 Good Hope, A. :MKNK(;Arx (h'cr. ,s'c/. |/'(;y/.s-|. 'i- ■'<cr.. 7 (1907), No. 16, pp. 

 '/91-'/9')). — ^lethods followed in ostrich raising on a commercial scale, ostrich 

 breeding, the collection and care of the plumes. ;ind similar questions are 

 considered. 



DAIRY FARMING— DAIRYING— AGROTECHNY. 



The testing of cows, J. L. lliij.s ( \ Criiionl Sta. Iliil. 12S. y//*. .7()-.s'.S'). — From 

 the results of a study of nearly Too yearly records and of over 4(H) lactations, 

 the following directions are given for determining readily the annual yield of 

 cows with sufficient accuracy for every i)ractical i)urpose : 



" AVeigh the nn'lk of each cow for three days monthly. At the end of the .vear 

 add these results and multiply by 10, making such corrections for time of 

 calving and drying off as circumstances indicate. 



*' Test the milk of each cow twice or thrice .vearly, using two composite samples 

 taken as follows : 



"(a) For cows calving normally in the months of September to February 

 inclusive and due to calve again in a reasonable time: in the third and fifth; 

 or in the third and seventh ; or in the second, fifth, and seventh ; or in the 

 second, fourth, and seventh; or in the third, fifth, and seventh months after 

 calving. The outcome is likely to be within O.oO per cent fat of the truth nine 

 times in ten. 



"(b) For cows calving normally in the months of March to August inclusive, 

 and due to calve again in a reasonable time: in the third, fifth, and seventh 

 months after calving. The outcome is likely to be within. 0.80 per cent fat of 

 the truth five times in six. 



"(c) For cows calving normally and tending to go dry early : in the third and 

 sixth months after calving. The outcome is likely to be within o.:'.0 ]ier cent fat 

 of the truth nine times in ten. 



"(d) For cows which have aborted: in th(> third and fifth or in the tliird and 

 sixth months after calving. The outcome is likely to be within 0,.'',0 per cent 

 fat of the truth nine times in fen. 



