58 



THE CONNECTICUT AGRICULTUEAL 



" The Bird Guano and Fertilizer." 



527. Sample received Jan. 26, from Samuel Hubbard, Hartford. 

 Dealer, L. A. Bradley, 17 Colony street, West Meriden. "Selling 

 price at factory, $30 per ton." 



Com'position. 



Organic and volatile matter,* — 5.37 



Carbonate of lime, .. ..: 56.10 



Carbonate of magnesia, — 2.38 



Sand, silica and clay, — 33.45 



Oxide of iron with traces of alkalies, chlorine, sulphuric and 



phosphoric acid, — 2.70 



100.00 



*With nitrogen, 0.20 



This quack fertilizer is an inferior quality of shell marl, said, in 

 the accompanying cii'cular, to be taken from the shores of Cayuga 

 lake, in New York. It corresponds most nearly in composition 

 and fertilizing value to leached ashes, is however rather inferior 

 to ordinary leached ashes which cost from $4.50 to $7.50 per ton, 

 according to the amount of transportation. 



Analyses op Rocks. 

 655. Limestone. Sent by H. N. Bill, Willimantic. 



Chemical Analysis. 



655. A. B. 



Lime, 20.28 29.32 5.69 



Magnesia, - 43 4.16 2.10 



Potash, --- .03 .29 .54 



Soda,-.... -30 .70 .67 



Oxide of iron and alumina,.. 1.89 3.28 8.89 



Phosphoric acid, trace trace .15 



Soluble in strong acids, 22.93 37.75 18.04 



Silica and silicates insoluble in 



acids, 61.20 32.86 75.59 



Carbonic acid (and loss on ig- 

 nition), 1G.47 29.39 6.37 



100.60 100.00 100.00 



* Water. 



c. 



.46 



1.80 



.47 



.28 



7.75 

 .10 



10.86 



86.06 



*3.08 

 100.00 



