BULLETIN OF THE BUSSEY INSTITUTION. 11 
Of matters valuable as manure the specimen contained : — 
Soluble phosphoric acid : gts, a ~ 6.65% 
Insoluble i“ ey ‘ : } : 5.96 
Total «“ 6 ul) meats & Et 12.51% 
Total nitrogen, 2.197% — j ammonia, 0.80%, i. e. nitrogen 0.66% 
nitrogen not in form of ammonia 1.53 
aes!) 9,10 Y 
There was sand, &c., to the amount of ¢ C : : ~ S208 
VII. Bay State Superphosphate, bought April, 1871, of J. Breck 
and Son, Boston. 
Moisture. ‘ ; : : . 10,08% 
Volatile matter (beside moisture) . 41.38 
Ash- °. ; ; : . 48.54 
E 100.00 
Of matters valuable as manure the specimen contained : — 
Soluble phosphoric acid eee ein LOS 
Insoluble “ ss : é ; : $.57 
Total « “ eh ou eee 13.80% 
__ § ammonia, 0.62%, i. e. nitrogen 0.51% 
( nitrogen not in form of ammonia 0.89 
ae Pao 
There was sand, &c., to the amount of . : ‘ ; : o M067 
Total nitrogen, 1.40 
VIII. Fales’s Superphosphate, obtained June, 1872, from Whitte- 
more, Belcher, & Co., Boston. 
Moisture. ; : - ; ee OLS 
Volatile matter (beside moisture). 17.04 
Ash F : . : ; - 76.92 
. 100.00 
Of matters valuable as manure the specimen contained : — 
Soluble phosphoric acid - : « ? 4469 
Insoluble “ . ; i 3 SPS S68 
Total “ - ; - ; : 10.15% 
Total nitrogen, 1.67% = ; pinmenis, 0.25% i, e- nitrogen‘ 0.21% 
nitrogen not in form of ammonia 1.46 
: Ly 
There was sand, &c., to the amount of . : ; ; . 29.63 
