490 



On the Composition of Linseed Oil-Cake, 



ception of rape), and cannot therefore judge what would be their 

 effect on the composition of the cake. They are, however, all of 

 the description which we know to be rich in nitrogen as well as 

 oil; and although they might injure the flavour, it is not pro- 

 bable that they would much diminish the albuminous principles 

 of the cake which should be made from the linseed containing 

 them. It is to be observed, however, that the analyses which 

 follow were made upon the pure linseed itself, after the separation 

 of the other seeds, and no peculiarity of composition is therefore 

 to be referred to their presence. 



Table 9. — Analysis of Specimens of Foreign Linseed : — 







NITROGEN. 













1st 

 Analysis. 



2nd 

 Analysis, 



Mean. 



Oil. 



Water. 



Ash. 



No. 1, 

 No. 2. 

 No. 3. 



Riga Linseed . 

 Memel Linseed 

 Black Sea Linseed 



3-57 

 3-31 

 3-36 



3-64 



3-36 

 3-27 



3 60 

 3-33 

 3-31 



34-70 

 36-00 

 38-42 



9-45 

 8-74 

 1012 



5-25 

 3-56 

 5-64 



The mean of these specimens is : — 



Nitrogen . , . . 3-41 



Oil . . . . 36-37 



Water 9-44 



Ash* 4-78 



The next table gives the composition of four specimens of 

 home-grown seed, the first having been grown by Mr. Warnes, 

 the second by H.R.H. Prince Albert, and the other specimens 

 obtained from Messrs. Gibbs, of Half- Moon Street. These 

 samples were all free from dirt or other seeds. 



Table 10. — Analyses of Specimens of English Linseed : — 





NITROGEN. 



Oil. 





Ash. 





1st 

 Analysis. 



2nd 

 Analysis. 



Mean. 



Water. 



No. 4. Grown by Mr.") 

 Warnes. 1847 . / 



4-54 



4-66 



4-60 



36-66 



12-33 



2-68 



No. 5. Grown by his) 















H. R. H. Prince 1 

 Albert, 1847 . . ) 



4-24 



4-32 



4-28 



32-77 



11-00 



3-30 



No. 6. Growth of 1847,) 

 Messrs. Gibbs . 1 



4-21 



4-29 



4-25 



33-50 



10-58 



4-08 



No. 7, Growth of 1848,1 

 Messrs. Gibbs . J 



4-22 



4-37 



4-29 



38-11 



8-57 



4-03 



* For the reasons given in the analysis of the cake, I believe the stated per-centage 

 of ash to be somewhat over the truth. 



