24 X. H. AGR. EXPERIMENT STATION. [Bulletin 151 



Testing of Pure Bred Cows. 



Requests have been received from several breeders of Guernsey, Jersey, 

 Hoist fin and Ayrshire cattle for the supervision of the station in conducting 

 weekly or yearly tests of their animals under the rules of their respective 

 associations. Since the issuing of the last Biennial Report, the following 

 a have been completed; 45 Holstein, 26 Ayrshires, 9 Guernseys and 6 

 Jerseys, a total of 74 as compared with a total of 20 for the two previous 

 years. 



Execution of Dairy Laws (Act of 1901). 



The act demands that any person who operates the Babcock test, or any 

 other test, for determining the butter-fat or solids in milk and cream, as a basis 

 for apportioning the value of same, must hold a certificate from the proper 

 station official showing the holder competent and well qualified to perform 

 such work. The law further provides that all glassware used in connection 

 with the testing must be tested for accuracy of graduations. 



During the last two years thirty-six candidates have been examined and 

 granted milk-testing certificates.. 



Three thousand and seventeen pieces of glassware were examined for 

 accuracy of graduation of which sixty-eight pieces or 2.25% were inaccurate 

 or defective. 



There are many problems both along the line of the production and handling 

 of milk as well as in the manufacturing of dairy products, the investigation 

 of which would be of benefit to the dairymen in the state. With the new 

 dairy building completed and nearly equipped the department has excellent 

 facilities for carrying out experimental and research work. It is, however, 

 impossible for the department to carry on experimental work until additional 

 assistants are employed. It is especially urged that as soon as possible a 

 dairy bacteriologist be connected with this department and that provision 

 be made for at least one half an assistant's time for experimental work. 



REPORT OF THE DEPARTMENT OF 

 CHEMISTRY. 



B. E. CURRY. T. O. SMITH. 



Since the last report was issued the following changes have taken place in 

 the Department of Chemistry. On September 1, 1909, Prof. F. W. Morse 

 severed his connection with the department. In April, 1910, Mr. T. O. Smith 

 was appointed assistant chemist and in September, 1910, B. E. Curry was 

 appointed chemist. 



The miscellaneous work has been increasing in amount during the last 

 biennial period. During this time 255 samples of fertilizers and 226 samples 

 of feeding stuffs have been analyzed for the State Hoard of Agriculture. 

 During the preceding period 160 samples of feeding Stuffs and 210 samples of 

 fertilizers were analyzed, an increase of GO samples of feeding stuffs and an 



