152 HATCH EXPERIMENT STATION. [Jan. 



Printed circulars are also sent, containing information con- 

 cerning the quality of the milk produced by different breeds 

 of animals, and the necessary instruction relative to the 

 best methods to be used in estimating the butter producing 

 capacity of dairy herds. 



In addition to the above, this division examines milk, 

 cream and butter collected in western Massachusetts by 

 the agent of the Dairy Bureau. The work is confined 

 largely to the detection of oleomargarine, and is paid for 

 by the Bureau, at a definite price for each determination. 



The number of feed stuffs sent for examination was a trifle 

 less than usual, due to the fact that quite thorough informa- 

 tion of this character is now furnished in the feed bulletins 

 issued from time to time by this division. During the 

 winter and early spring a considerable number of samples 

 of cotton-seed meal were received, tested, and the results 

 returned without delay. 



(c) Chemical Investigation. — So far as possible, it is the 

 intention of this division to continue its investigation of 

 some of the various dairy and feeding problems demanding 

 solution. At present the time is devoted to the examina- 

 tion of butter fat, the manufacture of butter, and the digesti- 

 bility of concentrated feed stuffs and summer forage crops. 

 Work of this character is to be found in connection with 

 Part II. of this report. 



D. Cattle Feed Inspection. 



The inspection of cattle feeds has been carried on in 

 much the same manner as in previous years. Bulletin No. 

 71, comprising forty pages, was issued early in the year. 

 This contains analyses of 653 cattle feeds, 33 poultry feeds, 

 46 so-called condimental foods for horses, cattle and poultry, 

 together with full discussion of the results obtained. The 

 interested reader is referred to it. When warranted, addi- 

 tional information is issued as press bulletins and sent to 

 about one hundred newspapers in the State. Should any 

 material be found seriously adulterated, a special circular is 

 sent at once to the grain dealers in every town. Two com- 

 plete inspections have been made during the present year, 

 resulting in the collection of 698 samples. They are now 



