326 Quarterly Report of the Chemical Committee , June , 1894 . 
He is not a scientific man, and unfortunately mixed some refuse lime 
•with the manure some months ago, thinking this would render it fit for 
drilling. 
Doubtless the lime has dissipated the ammonia &c. 
He has relieved me from my purchase, so the matter need not be pur- 
sued further. — Yours faithfully, W. Schoolcboft Bubioit. 
Dr. Yoelcker replied 
May 30, 1894. 
Deak Mb. Burton, — I have examined the sample of manure further, 
and have no hesitation in saying that the explanation given by the vendor 
is not the real one. The sample contains no caustic lime at all, nor anything 
that would drive the ammonia off, had it ever been present. What the 
sample does contain is brick-dust, grit, earth, &c., with which it has been 
adulterated. — Yours faithfully, J. Augustus Voelckeb. 
5. Mr. H. Hedges, of Sunbury, Middlesex, sent, on May 2, a 
sample of manure which was offered to him at 31 . per ton. 
The report on this was as follows : — 
Moisture . 
1 Organic matter 
Phosphate of lime . 
Carbonate of lime, &c. 
Sand 
May 14. 1894. 
. 8-25\ 
. 14-60 1 
•55 l 100 00 
. 21-50 1 
. 55-10j 
1 containing nitrogen 
equal to ammonia 
•58 
•70 
A very poor material, and hardly worth the name 
be dear at 10s. a ton. 
of manure. It would 
Mr. Hedges did not make any purchase. 
The following is an instance of gross adulteration of nitrate of 
soda : — 
6. Mr. Henry Davies, of Goldby’s Farm, Astley, Nuneaton, sent 
on May 5 for analysis a sample of what he stated had been sold 
to him as i; 95 per cent, pure Nitrate of Soda,” the price being 
11/. 10s. per ton delivered, payment vithiv one month. 
On the invoice being sent, it reac 1 : — - 
Nitrogen 
Min. Max. Tons .€ s . £ >■ d . 
Nitrate of Soda 13 14 % 2 11 10 per ton 23 0 0 
Dr. Yoelcker’s report on this sample was as follows : — 
May 14, 1894. 
Moisture 2 - 64\ 
Chloride of sodium (common salt) .... 25 - 74 1 j OO'OO 
Other impurities '791 
Pure nitrate of soda ...... 70'83/ 
An impure sample containing over 25 per cent, of common salt. The 
price asked is high for even the very best quality of nitrate of soda. 
