Annual Report for 1913 of the Consulting Chemist . 363 
from seaweed, and another is one obtained from beet-sugar 
manufacture. In both of these, as I have observed in earlier 
reports, potash is partly present as carbonate of potash, and if 
it be mixed with ammoniacal manures, e.g. sulphate of 
ammonia, there is likely to be some loss of ammonia. 
I proceed to comment briefly upon special points which 
have arisen in the course of the year. 
A. Feeding Stuffs. 
1. Linseed Cake. 
Linseed cakes have, with few exceptions, been satisfactory 
in quality, and almost invariably pure. The following are, 
however, two instances of low quality cakes : — 
A. 
B. 
Moisture . 
9-68 
Oil ... 
6*25 
6-21 
1 Albuminoids 
35*69 
30 81 
Mucilage, fibre, &c. . 
41*20 
2 Ash .... 
7*18 
100*00 
] Containing nitrogen . 
5*71 
2 Including sand. 
1*39 
“A” cost 11. 15s. per ton delivered, and was distinctly dear 
for such quality. 44 B ” had been guaranteed to contain 9 per 
cent, of oil, and was, accordingly, much below the guarantee. 
2. Cotton Cake. 
Egyptian cotton cakes have been, almost without exception, 
good. Bombay cotton cakes, however, were not so satis- 
factory, and in many cases have been very “ woolly,” and have 
contained a comparatively high percentage of sand. 
I received a sample called 44 Egyptian screw-pressed cotton 
cake ” ; this was guaranteed to contain 8 per cent, of oil and 
23 per cent, of albuminoids. 
My analysis was : — 
Oil ....... 7*21 percent. 
Albuminoids ..... 19*69 ,, 
This cake was not only below the guarantee, but it 
contained a large amount of husk and wool, being very much 
more like 44 Bombay ” cotton cake than 44 Egyptian.” The 
amount of husk and wool that could be separated out 
mechanically was as much as 61 per cent. 
