( 300 ) 
XXI. — Quarterly Reports of the Chemical Committee. 
March 1880. 
1. A SAMPLE of manure, called British Guano, was sent last 
May by Mr. VV. P. Burbery, Tlie Crofts, Stratford-on-Avon, and 
on analysis showed the following composition : — 
Moisture 10-88 
*Orgaiiic matter 17-37 
Monobasic phosphate of lime 1-62 
Equal to tribasic j)hosphate rendered soluble (2-51) 
Oxide of iron and alumina and a little plios- . .-, 
, . . , ^ 0(1 
phone acid 
Sulphate of lime, &c 34 -27 
Insoluble siliceous matter (sand) .. .. 21-15 
100-00 
* Containing nitrogen -21 
Equal to ammonia -25 
This so-called British guano, it will be seen, contained only 
\ per cent, of ammonia and but little phosphate of lime. It was 
sold by the makers, Messrs. C. F. Jones and Co., 4, New Street, 
Mark Lane, E.C., at 3/. per ton on rail at London, and in 
Dr. Voelcker's judgment is not worth the carriage to any con- 
siderable distance. Mr. Burbery wrote as follows : — 
" The manure was sold without guarantee. You analysed sample of 
manure for me the year before. I refused to pay for the manure the year 
before, as I could find no benefit. Mr. Jones came to see me, and I ultimately 
agreed to have two tons more and not to pay for the three tons I had used. 
I settled in that way, as I thought that four tons for Gl. would be better than 
paying for the two tons ; as I had no .guarantee with the manure he could 
have compelled me to pay." 
2. The following is the composition of a sample of an 
adulterated linseed cake stamped (N), sent by Mr. H. Stephen 
Allen, Eastover, near Andover: — 
Moisture 16-09 
0\\ 8-46 
*Albuminous compounds 25-69 
Mucilage, sugar, and digestible fibre .. .. 34-78 
Woody fibre (cellulose) 9-23 
Mineral matter (ash) 5-75 
100-00 
* Containing nitrogen 4-11 
This cake was poor in oil and adulterated with earth-nut 
cake. 
