o20 Quarterly Reports of the Chemical Committee, 1887. 
4. A member of tlie Society sent on March 10, 1887, a 
sample of linseed-cake wlaicli he had been giving to a valuable 
thoroughbred filly, nine months old, together with other food. 
The filly was seized with general paralysis, and her life was in 
considerable danger. Thinking the cake might be the cause, 
the member referred to forwarded a sample for analysis, of which 
the following is the report : — • 
" March 23, 1887. 
Moisture 12-32 
Oil . . 8-41 
' Albuminous compounds (flesh-formiug matters) . 27'44 
jNIucilage, sugar, and digestible fibre . . . 36'47 
Woody fibre (cellulose) 8'97 
Mineral matter (ash) 6-39 
100 00 
' Containing nitrogen ..... 4'39 
" This is a cake low in oil and very impure. It contains an immense 
quantity of weed and other seeds, among which I recognise mustard. It is 
one of the worst cakes I have examined for a considerable time. 
" J. AUGTTSTTIS VOELCKER." 
The cake was shipped from South Riga, and was stated to be 
of Schmitz's manufacture. The name of the vendor could not 
be obtained. 
5. Mr. W. Hughes, of Norsted, Chelsfield, Kent, forwarded 
on March 18, 1887, a sample of " Sootigine," of which he had 
bought 10 tons at 35s. per ton, this material having been repre- 
sented to him as equal to guano. The vendors were the New 
Carbolic Sanitary Company, Hackney, London. The analysis 
was : — 
" March 28, 1887. 
Moisture 21-91 
> Organic matter 26"I4 
Phosphate of lime ...... traces 
Oxide of iron and alumina ..... 12'01 
Carbonate and sulphide of lime, alkalies, &c. . 2r.57 
Insoluble silicious matter 18'37 
100-00 
' Containing nitrogen ..... -81 
Equal to ammonia . . . . . . -99 
" About three times too dear ; it is poor manure. 
"J. AUCTTSTUS VOELCKKR." 
Mr. Hughes wrote on May 2 : — 
"Dear Sir, — I now send you the bill you ask for in your report on 
sample of sootigine, which in its application quite carries out your report, 
