874 
SIR J. B. LAWES AND DR. J. H. GILBERT ON THE COMPOSITION 
It should be further explained that, for comparison with the results relating to the 
same parts of the other animals, the composition of the ash of the collective offal parts 
of the two pigs is calculated from the analyses of the ash of the parts exclusive of the 
head and feet, and of that of the head and feet, the details of which are given in 
Appendix-Table II. Again, it will be observed that the results relating to the entire 
animal ash of the very fat sheep are given in brackets, the figures not being those of 
the actual analysis, but calculated from the results of the analyses of the ash of the 
carcass parts and of the offal parts separately. The results of the actual analysis 
of the entire animal ash are given in the Appendix-Table III. ; but although there is 
no reason to doubt the accuracy of the analysis, there can be no doubt that there has 
been some omission of parts in making the mixture for burning to ash. Some item 
rich in potash has obviously been omitted. 
