54 EXPERIMENT STATION. [Jan. 



2. Important ash constituents in cattle foods. 



3. Composition of dairy products. 



4. Digestion coefficients obtained from experiments made in 

 the United States. 



5. Composition of fertilizer materials and of natural and 

 waste products. 



6. Fertilizer constituents of fruit and garden crops. 



7. Relative proportion of phosphoric acid, potash and ni- 

 trogen in fruit and garden crops. 



8. Composition of some Massachusetts soils. 



5. Report of the Fertilizer Section. 

 Mr. H. D. Haskins makes the following report : — 

 The principal work of this section has had to do with the 

 execution of the fertilizer law of the State. Our experience this 

 season indicated a very active demand for both chemicals and 

 factory-mixed commercial fertilizers. There was a larger num- 

 l)er of brands licensed than ever before. The inspection did not 

 include the collection of as large a number of samples as during 

 the previous year, although about the same number of brands 

 were analyzed. It has been necessary to curtail somewhat, in 

 order to keep as nearly as possible within the income derived 

 from the fertilizer analysis fees. The expense of the inspection 

 work has increased from year to year, and necessitates a larger 

 income. It has also become evident that the old law requires 

 many changes in order to make it applicable to present condi- 

 tions. An attempt to improve the law is now under consid- 

 eration. 



Fertilizers licensed. 

 During the season of 1910 analysis fees have been paid by 

 88 manufacturers, importers and dealers, including the various 

 branches of the American Agricultural Chemical Company, 

 upon 465 distinct brands of fertilizer, including agricultural 

 chemicals and by-products. Five more certificates of compli- 

 ance have been issued, including 34 more brands than during 

 1909. Thev mav be classed as follows: — 



