Quarterly Reports of the Chemical Committee, 1884. 363 
Moisture 18-90 
*Ors;aDic matter 20-95 
Phosphate of lime 30-82 
Carbonate and sulphate of lime, alkaline, salts, &c. 22 - 73 
Sand 6-60 
100-00 
* Containing nitrogen 1*36 
Equal to ammonia 1-65 
Dr. Voelcker reported on it as being adulterated, and not 
worth more than 4/. 85. a ton. 
No further particulars could be obtained. 
9. Mr. P. S. Bach, of Elsich-Bromfield, Salop, sent, on 
April 18th, a sample of boiled bones. 
Dr. Voelcker's analysis and report were : — 
Moisture 3 "95 
■Organic matter 14-40 
Phosphate of lime 40-32 
Sulphate of lime 35-42 
Carbonate of lime, alkalies, &e 4-21 
Insoluble siliceous matter 1-70 
100-00 
* Containing nitrogen 1-20 
Equal to ammonia 1-45 
" The sample which jou sent me is adulterated with plaster of 
Paris. Genuine boiled bones contain fully 60 per cent, of 
phosphate of lime." 
No more information could be obtained in this case. 
10. Mr. Hanslip Long, of Shippey Hill, Ely, purchased 5 tons 
of " ground bones," warranted " pure," at 6/. IO5. per ton, and 
sent a sample on May 1st for analysis. 
Dr. Voelcker's analysis and report were :— 
Moisture 12-05 
•Organic matter .. 23-56 
Phosphate of lime 32 • 64 
Carbonate of lime .. ••. ■• •• 6-35 
Common salt, &c •■ .. 24*05 
Sand 1-35 
100-00 
* Containing nitrogen 3-64 
Equal to ammonia 3-69 
May 15th, 1884, 
" Dear Sir, — The sample which you sent me is shamefully adulterated with 
salt. Good ground bones contain on an average 46 to 48 per cent, of 
phosphate of lime, and yield not less than 4^ per cent, of ammonia. Genuine 
ground bones cannot be sold with a fair profit at 11. per ton. — Yours faithfully, 
" H. Long, Esq. Augustus Voelcker." 
