28t) Report of the Consulting Chemist. 
Composition of two Supekphosphates 
No. 1. 
Sold at £6 3s. 
Uftt cash. 
No. 2. 
Sold at £4 3s. 
nett cash. 
Water of combination and\ 
*Or ganic matter / 
Bipliosphate of lime (mouo-hasic phosphate of lime) .. 
Equal to bone phosphate (tri-basic phosphate of Iime)\ 
1.T-3S 
9-45 
13-04 
(20-42) 
13-25 
43-10 
1-03 
4-75 
18-92 
6-21 
15-66 
(24 - 52) 
5-14 
47-37 
-86 
5-84 
100-00 
100-00 
•33 
■40 
•08 
-09 
These two superphosphates have nearly the same commercial 
value. No. 1 contains a little bone ; No. 2 is a purely mineral 
superphosphate, I should feel disposed to give from bs. to 7s. ^d. 
more per ton for No. 1 than for No. 2, The sample marked No 1 is 
rather dear at 6/. 35., nett cash, and No. 2 cheap at 4Z. '6s., nett cash. 
Of the 32 samples of bone dust, not one was adulterated, 
which clearly shows that the unsparing publication of the names 
and addresses of dealers in adulterated bone dust has had an 
excellent effect. 
With respect to feeding cakes, I regret to have to report that lin- 
seed cake is still sold, as genuine and pure, which is largely mixed 
with rice meal, oat dust, pollard, mill-sweepings, earth-nut cake, 
cotton cake, and sometimes with more objectionable materials. 
Linseed cake, when mixed with rice dust or pollard, is gene- 
rally comparatively poor in flesh-forming matters, as will be seen 
by the following analysis of a sample of cake which was found 
adulterated with oat dust and similar starchy mill-refuse : — 
Moisture 14-72 
Oil 12-04 
'Albuminous compounds (flesh-forming matters) . . 23-25 
Mucilage, sugar, and digestible fibre 35-57 
Woody fibre (cellulose) 8-24 
Mineral matter (ash) 6-18 
100-00 
Containing nitrogen 3-72 
It is, however, quite possible to supplement the deficiency of 
flesh-forming matters in a cake adulterated with starchy mill- 
refuse by incorporating with the cake at the same time a meal 
richer in nitrogen than pure linseed cake. Decorticated nut 
