1911.] PUBLIC DOCUMENT — No. 31. 73 



improviuii,' the suppl,y when necessary. Parties wishing for 

 water analysis should observe the following points : — 



1. Application should be made for analysis. 



2. A fee of $3 is charged for each analysis, payable with 

 the application. 



3. Only samples of water received in experiment station con- 

 tainers are analyzed (containers sent on application). 



4. The experiment station does not make bacteriological ex- 

 aminations. 



5. The experiment station does not undertake a mineral 

 examination of waters for medicinal properties. 



Miscellaneous W()7-l: 

 In addition to the work already described, this section has 

 conducted investigations and made other analyses as follows: — 



1. It has co-operated with the Association of Official Agri- 

 cultural Chemists in a study of the methods for the determi- 

 nation of acidity in gluten feeds. 



2. It has co-operated with the officials of the ^ew England 

 Corn Exposition in making analysis of corn in connection with 

 the awarding of prizes. 



3. It has co-operated with the Bowker Fertilizer Company 

 in making analyses of corn in connection with the awarding of 

 prizes. 



4. It has arranged and furnished exhibits and speakers in 

 co-operation with the extension department for (a) the better 

 farming special; (?>) the better farming trolley special; (c) 

 an exhibit for several of the Massachusetts fairs; (d) an ex- 

 hibit for the New England Corn Show. 



T). It has conducted an investigation in connection with cases 

 of alleged arsenic poisoning of horses through eating sulfured 

 oats, with negative results. 



0. In connection with the experimental work of this and 

 other departments of the experiment station, this section has 

 made analyses of 247 samples of milk, 115 samples of cattle 

 feeds and 300 samples of agricultural plants. 



