334 Quarterly Beporh of the Chemical Committee, 1887. 
14. Mr. H. Potter, of Bestwood Park, Arnold, Notts, sent 
on July 1, 1887, a sample of linseed-cake for opinion as to its 
purity. On Dr. Voelcker reporting that He believed it to be 
impure, and advising a full analysis, this was made, and the 
following report sent : — 
" July 19, 1887. 
Moisture 12-25 
Oil 11-81 
^ Albuminous compounds (flesh-forming matters) . 26-94 
Mucilage, sugar, and digestible fibre . . 32-12 
Woody fibre (cellulose) 8-03 
- Mineral matter (ash) 8-85 
100-00 
' Containing nitrogen ..... 4-31 
- Including sand ...... 3-55 
" This cake has a good deal of rape-seed iu it, together with other foreign 
seeds, also 3^ per cent, of sand. " J. Augustus Voelckek." 
One ton of this had been purchased from Messrs. F. White 
& Son, of Eetford, at 11. a ton delivered (5s. discount), the 
cake being invoiced and branded as " B. Pure." The makers 
were Messrs. Walker & Smith, of Hull. 
Mr. Potter, in answer to inquiries, reported that up to date 
he had not been able to obtain any settlement, in consequence 
of the vendor having gone abroad. 
15. Mr. Charles Walker, of Southfields, Coleshill, near Bir- 
mingham, sent, on September 1, a sample of linseed-cake for 
analysis. Dr. Voelcker's report was : — 
« September 24, 1887. 
Moisture 10-98 
Oil 11-41 
' Albuminous compounds (tiesh-forming matters) . 30-25 
Mucilage, sugar, and digestible fibre . . . 30-73 
Woody fibre (cellulose) 9-69 
^ Mineral matter (ash) 6-94 
100-00 
• Containing nitrogen ..... 4-84 
- Including sand ...... 2-01 
" A cake adulterated with rape. J. Augustus Voelckek." 
Mr. Walker purchased four tons of this cake from dealers 
at Warwick, at 4i!. 18s. Qd. a ton delivered, the cakes being 
branded " B. Pui'e." The makers were Messrs. Walker & 
Smith, of Hull, and the cakes were invoiced " W. & S. Pure 
Lineeed-Cake." On November 25, Mr. Charles Walker wrote :— > 
