AGRICULTURAL EXPERIMENT STATION. 



77 



Gravimetric 

 Method. 



Test Bottle with 

 Bulb Neck. 



l'est Bottle with 

 Separable Neck. 



tt tt 



18.4 



14.3 



tt 



19.6 

 19.7 



tt 

 IS. 62 

 18.6 

 20.4 

 19.75 



t, 

 •t 



t 



18.4 

 18.35 



14.1 

 14.2 

 14 1 

 14.3 

 19.3 

 19.3 

 19.2 

 19.7 

 19-6 

 19.8 

 18.4 

 18.5 

 20.1 

 19.6 

 19.6 

 19.8 

 19.9 

 19.7 



18-45 

 18.10 



t. tt 



IS. 35 



a it 



IS. 40 



" No. 2 



14.0 



ii .. 



14.3 



it n 





u it 





» No. 3 



19.3 



it kt 



19.5 



bt it 





.. tt 





tt t. 





tt tt 





«■' No. 4 





ki No. o 





" No. 6 



20.0 



" No. 7 



19.6 

 19. S 



tt .i 



19.8 



tt tt 



19.9 



it tt 



19.7 







Note. — The object of this bulletin is to call attention to an accurate and rapid 

 method of determining the percentage of fat in milk and cream. The apparatus 

 as originally described by Dr. Babcock has been modified by Mr. Bartlett to 

 meet the needs of creamery work in Maine and the new forms of testing flasks 

 that have been devised are favorably regarded by Dr. Babcock. The Experi- 

 ment Station does not assume that the managers of creameries are ready to value 

 their patrons cream on the basis of the actual percentages of fat, neither does it 

 propose at this time to urge such a course, for that is a purely business matter, 

 but it seems very desirable that in case any creamery management should con- 

 clude to apply the only just standard of valuation, some practical method for 

 doing this should be at hand. This bulletin presents such a method. 



Should any creamery manager or private dairyman wish to purchase and put 

 into operation the Babcock apparatus, the Experiment station will be glad to 

 render all the assistance possible, either through suggestions about the purchase 

 of, or instruction in the use of, the apparatus. Prompt attention will be given 

 to all inquiries in regard to the matter. 



W. H. JORDAN. 



Orono, Me., Director. 



Sept. 1st, 1891. 



