586 Quarterly Beport of the Chemical Committee, July 1892 . 
The order given on April 15, 1892, was for 4 tons of Best 
English Bone-Meal, 4| per cent, ammonia, 45 per cent, phosphates. 
The report given on the sample was as follows : — 
May 27, 1892. 
Moisture 10'87\ 
’ Organic matter 35 33 I 
Phosphate of lime 41-68 100 00 
* Carbonate of lime, common salt, &c. . . . 10 32 
Sand . . . . . . . . . I'OOj 
* containing nitrogen ...... 3 63 
equal to ammonia ...... 4'41 
^ including common salt ..... 2'99 
This is low in quality, and contains some admi.vture of salt. 
The vendors offered 10s. per ton allowance, but Mr. Hepple did 
not consider this sufficient, and ultimately 1/. per ton was deducted. 
The following case is interesting, inasmuch as it shows the 
care which must be taken so as not to be misled by a form of 
guarantee. 
3. Mr. J. F. Honeyball, of Teynham, Sittingbourne, sent on 
June 2 a sample of “ Queenborough Special Hop Manure.” This had 
been supplied to him by the manufacturers. The Sheppy Glue and 
Chemical Works, Limited ; London Offices, 34 Mark Lane, E.C., 
Works, Queenborough, near Sheerness. 
The price was 6/. 17s. 6d. per ton, and the guarantee was in 
the following terms : — “ Guaranteed analysis : 23 to 26 per cent, 
of Phosphates, 5^ to 6 per cent, of Ammonia and 10 per cent, of 
Potash Salts.” 
Dr. Voelcker's analysis showed the following results : — 
Moisture ........ 
* Organic matter and w-ater of combination 
Monobasic phosphate of lime 
equal to tribasic phosphate of lime (bone phosphate) 
rendered soluble by acid . . . . . 
Insoluble phosphates ...... 
Sulphate of lime, alkaline salts, &c. 
usoluble siliceous matter ..... 
* containing nitrogen . ..... 
equal to ammonia ...... 
June 14, 1892. 
16 36 \ 
17-48 
12-76 
(19 97) 1 100-00 
11-98 
34 10 
7-34 / 
-87 
1-05 
Mr. Honeyball complained to the vendors as to the deficiency in 
ammonia, and they in reply said that there was a printer’s error in 
the circular ; in consequence they had since withdrawn the circular. 
The guarantee, they stated, should have read “and U per cent, of 
ammonia, equal to 5^ to 6 per cent, sulphate of ammonia.” After 
some further correspondence the vendors agreed to an allowance of 
21. per ton on the two tons purchased. 
