Reports of the Chemical Committee. 
291 
This so-called fish-and-blood manure is very poor in phosphate 
of lime ; and as dry blood and flesh yield about 16 per cent, of 
ammonia on decomposition, the sample analysed, producing not 
quite IJ per cent, of ammonia, cannot have contained much blood 
or fish. It is principally composed of carbonate of lime, earth, 
and sand, mixed with various kinds of organic refuse matters, 
a little blood, some fishery salt, and a few fish-bones. Such a 
manure is barely worth 25s. a ton, but was sold at 6/. a ton. 
With respect to feeding-cakes. Dr. Voelcker reports the case 
of a linseed cake, which was sold to Mr. Jas. J. Bibby, Hard- 
wicke Grange, Shrewsbury, branded " W H Genuine." This 
cake he found to be adulterated with earth-nut cake, and to be of 
the following composition : — 
Moisture 9-20 
Oil 9-90 
•Albuminous compounds (flesh-forming matters) .. 26'18 
Mucilage, sugar, and digestible fibre 30'84 
Woody fibre (cellulose) 17'36 
Mineral matter (ash) 6"52 
100-00 
♦Containing nitrogen 4* 19 
In answer to an inquiry for particulars of the purchase, Mr. 
Bibby wrote that he bought a lot of 5 tons in July, from 
Messrs. Fields' Mercantile Company (Limited), Shrewsbury, as 
a genuine cake, at 111. 7s. 6c?. per ton, delivered. Messrs. Fields, 
the dealers, state that the maker is W. Holt, of Hull. 
The following correspondence ensued : — 
" Hardwicke Grange, Shrewsbury, November 2, 1870. 
" Dear Sir, — I duly received yours of the Ibth and 21st ult., with analysis 
and report on a sanijile of adulterated linseed cake branded ' W H Genuine,' 
and, as requested, I write to inform you of the particulars of the purchase. 
" The sample is from a lot of 5 tons bought in July from Fields' Mercantile 
Company (Limited), Shrewsbury, as a genuine cake, price 11^. 7s. Gd. per 
ton, delivered — ' Earlcs and King's' Liverpool cake being then 121. 7s. 6d. 
per ton, delivered. Messrs. Fields, who are dealers, inform me that the maker 
is W. Holt, Hull. I have written for an explanation, and annex a copy of 
my letter and of the maker's reply, &c. 
" I am, dear Sir, yours faithfully, 
" Jas. J . Bibby (pro Jos. Winchester). 
" Dr. Voelcker, London, E.G." 
(Copy.) 
" Grinshill, Shrewsbury, October 26, 1870. 
" Gentlemen, — In July last I bought from you a parcel of 5 tons of linseed 
cake, branded ' W H Genuine,' which was described by your manager and 
sold as a genuine linseed cake. I regret to say, however, that the analysis 
of a sample by Dr. Voelcker shows the cake to be adulterated, and, of course, 
U 2 
