40 MASS. EXPERIMENT STATION BULLETIN 305 



During ten weeks following April 1, four experienced men employed to draw 

 samples for inspection purposes sampled 19, LS? sacks or containers, representing 

 7,751 tons of material; 875 agents were visited. 



Mi.\ed fertilizers 



Ground bone, tankage and 



fish 



Nitrogen products, organic 



and mineral 



Phosphoric acid products. . 



Potash products 



Dried pulverized natural 



manures 



Nitrate of potash 



Miscellaneous 



Lime products 



Totals 540 .514 1.759 751 7,183 



*Not counting check tests or repeats, which amount to more than 1,000. 



During the period JuK 1, 1932, to JuK 1, 1933, the tonnage of fertilizer and 

 plant food sold in Massachusetts was as follows: 



Mixed fertilizers 



Unmi.xed fertilizer chemicals and materials 

 Pulverized natural manures 



Totals .54,970 3,083 4,442 2,848 



Full details of the fertilizer and lime inspection will be found in Bulletins 

 69 and 71, Control Series. 



Miscellaneous Analytical and Diagnostic Work. (H. D. Haskins, H. R. 

 DeRose, A. F. Spelman, J. W. Kuzmeski.) Chemical investigations of a co- 

 operative nature have been carried on, as has been the usual custom, with other 

 departments of the institution, the Waltham Field Station, County Agents, etc. 

 The character and extent of this work is shown from the following summary: 



Artificial manures (nitrogen Cured hay 35 



studies) 87 Lead arsenate 1 



By-product fertilizers 3 Lime products 2 



Carnation blooms 2 Manures 2 



Citron 2 Miscellaneous 2 



Complete fertilizers, home mix- Peat products 5 



ed and officially collected. . . 17 Tobacco soils 5 



Dried turnips 2 Fish meal 5 



Fertilizer chemicals 5 Greenhouse soils 2 



The chemical work of the department has also included service to farm organi- 

 zations, State institutions, community interests, as well as to individuals inter- 

 ested in agriculture. Reports in all cases have included interpretations and 

 advice with reference to the problems involved. This group includes the follow- 

 ing materials: 



