162 



are thought to remain inert for a month or two, but with the aid of sun 

 heat and sufficient moisture they regain their virulence after a time 

 and cause the death of susceptible cattle. When, however, these germs 

 are deposited by affected Northern cattle before their virulence is 

 regained, cold and frost modifv and even destroy their activity. 



Nevada Station, Bulletin No. 8, January, 1890 (pp. 14). 



The codling moth, F. H. Hillman, B.S. (illustrated). — An account 

 of the life history of the codling moth {Carpocapsa pomonella) and the 

 means for its repression. In an appendix, spraying apparatus is de- 

 scribed and illustrated. 



Nevada Station, Bulletin No. 9, May 31, 1890 (pp. 4). 



A SERIOUS ROSE PEST, F. H. HiLLMAN, B. S. — Notes ou LWiopliana 

 antennata (Walker), with suggestions as to remedies. 



New Jersey Stations, Bulletin No. 65, January 31, 1890 (pp. 15). 



Experiments with different breeds of dairy cows, M. E. 

 Gates, Ph. D. (i)p. 3-15). — This is a continuation of the record of the 

 experiments reported in Bulletins Nos. 57 and 61 of these stations 

 (See Experiment Station Eecord, Vol. I, pp. 258 and 260). Five 

 breeds — Ayrshire, Guernsey, Holstein-Friesian, Jersey, and Short- 

 horn — are included in the test. The bulletin contains monthly records 

 of the food eaten and the yield of milk for November, December, and 

 January, together with a tabular statement of the daily rations fed, the 

 average daily yield per cow from August 1 to February 1, and the av-' 

 erage quality of the milk as determined by chemical analysis. The 

 food given during the summer and fall was believed by practical dairy- 

 men to conform closely, in kind and quantity, to that commonly used 

 in milk dairies. 



As stated in Bulletiu No. 61, it was thought that the variatious in and the poor 

 quality of tlie green food supplied, due to the extieme moisture of the season, con- 

 tributed largely to the variatious observed in the quality of the milk. 



The following analysis of the green fodder corn shoves the variatious which may 

 have occurred in the rations supplied during August and September: 



August 1 



August 7 



September 2. 



Month. 



Dry 

 matter. 



Per cent. 

 16.57 

 22. 81 

 27.25 



Digestible nutrients in green 

 material. 



Fat. 



Per cent. 

 0.24 

 0.38 

 0.73 



Protein. 



Per cent. 

 0.78 

 1.26 

 1.33 



Carbohy- 

 drates.* 



Per cent. 

 9.96 

 13.29 

 15.51 



* Inc'liuliui: tiber. 



This table indicates that the corn fodder contained the minimum of solid matter 

 on August 1, and that on September 1, '>() pounds of the corn fodder would have 

 furnished almost the same quantity of food compounds as were contained in 100 pounds 

 ou the Ist of August. 



