474 DR ANDERSON ON THE DISTILLATION OF ANIMAL SUBSTANCES. 
The presence of aniline in bone-oil I have already alluded to, and its quantity, 
though small, is by no means inconsiderable, when compared with that of the 
other bases. I did not think it necessary to take any further means for its iden- 
tification than its highly characteristic reactions with chloride of lime and nitric 
acid. 
The investigation of the other bases is not yet in a sufficiently advanced state — 
for publication. The sparingly soluble one has been especially troublesome, and 
its purification is attended by difficulties which I have not yet fully overcome. 
The consideration of these will be taken up in the second part of this investiga- 
tion. 

