278 AGKICULTURAL EXPERIMENT STATION. [Jan. 



6. Miscellaneous Analyses — Concluded. 



" Nicotinia " (^Insecticide). 



[Sent on from Syracuse, N. Y.] 



Per Cent. 



Moisture at 100° C, 10.00 



Ash, 27.37 



Calcium oxide, 4.45 



Magnesium oxide, .90 



Potassium oxide (41 cents jier pound), 9.15 



Pliosphoric acid (6 cents i^er pound), .67 



Nitrogen (17 cents per ijound), 2.49 



Insoluble matter, 2.12 



Valuation per ton, $17 05 



Hellebore {Insecticide') . 

 [Sent on Ijy Joseph Breck & Son, Boston, Mass.] 



No. II. was evidently adulterated with ground clay. 



Peroxide of Silicate (^Insecticide) . 

 [Sent on from Amberst, Mass.] 



Moisture at 100° C, 

 Calcium oxide. 

 Sulphuric acid, 

 Arsenious oxide. 

 Copper oxide. 

 Insoluble matter, 



G3'i)snm, v 



ith a tra( 



e of Paris jrreen. 



Per Cent. 



1.65 



41.18 



49.66 



.57 



.33 



2.31 



