1907.] PUBLIC DOCUMENT — No. 33. 83 



Part I. — Outline or the Year's Work. 



J. B. LINDSEY. 



CoRRESrONDENCE. 



A considerable correspondence is carried on yearly with 

 farmers, grain dealers and other station workers. ISTnnierons 

 questions are asked concerning feeds and methods of feeding. 

 The execntion of the dairy and feed law involves the exchange 

 of many letters. Letters of all kinds, sent from Dec, 15, 

 1905, through Dec. 15, 190G, approximated 3,200. 



Summary of Laboratory Work. 



From Dec. 15, 1905, to Dec. 15, 1906, there have been 

 received and examined 124 samj)les of water, 310 of milk, 

 1,799 of cream, 152 of feed stuffs and 2 miscellaneous. In 

 connection with experiments made by this and other divi- 

 sions of the station, there have been examined, in whole or 

 in part, 336 samples of milk and cream and 187 of cattle 

 feeds. There have also been collected and examined 703 

 samples of cattle feeds, in accordance with the requirements 

 of the feed law. The total for the year has been 3,613, 

 as compared with 4,042 in 1905 and 4,261 during 1904. 

 Work with condensed milk, molasses, maple sugar, ash and 

 nitrogen, not included in the above summary, has been car- 

 ried on for the Association of Official Agricultural Chemists. 

 TAventy-three candidates have been examined and given cer- 

 tificates to operate Babcock machines, and 2,457 pieces of 

 Babcock glassware have been tested for accuracy of grad- 

 uation. 



Water Analysis. 



The station continues to make sanitary analyses of drink- 

 ing waters, at a charge of $3 each. Special jars are fur- 

 nished, together with full instructions for collecting and 



