Quarterly Rejoorts of the Chemical Committee, 1887. 317 
zance of aU cases of adulteratioo reported to them in which the 
word " pure," whether stated on the invoice or branded on the 
cake, has been used, with or without any prefix. 
1. J\lr. T. Goodall, of the Park Farm, Hurleston, Nantwich, 
sent on February 19, 1887, a sample of boiled bones. 4J tons 
had been ordered, at 4/. 2.«r. 6d. per ton for cash, the bones to be 
genuine. The vendor was Mr. Samuel Smith, of Hargreaves 
Street, Rogers Street, Redbank, Manchester, who was the 
manufacturer. The analysis was as follows : — 
" March 2, 188". 
Moisture 1.3-68 
' Organic matter . . 18'47 
Phosphate of lime 42-57 
Commou salt (chloride of sodium) .... 2'65 
Sulphate of lime 1873 
Carbonate of lime, &c. ...... 3"00 
Insoluble silicious matter -90 
100-00 
' Containing nitrogen ...... 1-17 
Equal to ammonia ...... 1-42 
"This sample is adulterated with sulphate of lime (gypsum"), and has 
also over 2i per cent, of salt ; by this admixture it is lowered iu value to 
the extent of about 1/. a ton. " J. AxJGUSxtrs Voelcker." 
After inquiry made as to how the case had been settled, 
Mr. Goodall wrote on May 3 : " Mr. Smith allowed me a 
deduction of 11. per ton, as suggested in your letter." 
2. Mr. H. Potter, of Bentwood, Arnold, Notts, bought two 
tons of bone-dust at 61. los. a ton, and sent a sample for ana- 
lysis, the result of which is given below : — 
Moistuie ..... 
' Orgauic matter .... 
Phosphate of lime 
Carbonate of lime, &c. 
Chloride of sodium (common salt) 
Insoluble eilicious matter . 
April 11, 1887. 
16-26 
27-30 
40-79 
5- 67 
6- 79 
4-19 
100-00 
' Containing nitrogen ...... 2-86 
Equal to ammonia ...... 3.47 
"This is a low quality sample, adulterated with nearly 6 per cent, of 
s^h. " J. AxJGusirrs Voelcker." 
The name of the vendors was not forthcoming, Mr. Potter 
saying that he had promised not to give it ; they were friends 
and close neighbours. The vendors, however, made an allowance 
of 25s. a ton. 
