1890.] PUBLIC DOCUMENT — No. 33. 231 



SPECIAL WORK IN THE CHEMICAL 

 LABORATORY. 



I. Coimnunication on commercial fertilizers : — 



1. General introduction. t 



2. Laws for the regulation of the trade in commercial 



fertilizers. 



3. List of licensed manufacturers for May 1, 1889, to 



May 1, 1890. 



4. Analyses of licensed fertilizers. 



5. Analyses of commercial fertilizers and manurial sub- 



stances sent on for examination. 



6. Miscellaneous analyses. 

 II. Water analyses. 



III. Compilation of analyses made at Amherst, Mass., of agri- 



cultural chemicals and refuse materials used for fertilizing 

 purposes. 



IV. Compilation of analyses made at Amherst, Mass., of fodder 



articles, fruits, sugar-producing plants, dairy products, etc. 



