$8s Mr. W. Brande's Observations on Albumen , 
of mucus : Is it a peculiar combination of muriate of soda and 
albumen ? or may it not be a compound of soda and albumen, 
in which the alkali is not separable by the usual modes of 
analysis, but which yields to the superior decomposing energy 
of electricity ? 
4. Bile. 
An immediate coagulation took place in this secretion, at 
the negative conductor, the albumen being tinged throughout 
of a green colour, arising from the colouring matter at the same 
time separated. 
The relative proportion of albumen, separable by electricity 
from different specimens of ox-bile, was found to be liable to 
considerable variation, so that a detailed analysis of this fluid, 
cannot be generally depended upon. I have found the albm* 
men in bile to vary in quantity from 0.5 to three per cent., 
and it is somewhat remarkable, that where there is a small 
quantity of albumen, there likewise the proportion of the re- 
sinous matter of bile is relatively small. 
The electro-chemical decomposition of this fluid, affords, 
besides the results just mentioned, a considerable quantity of 
soda at the negative pole ; and at the positive pole, a mixture 
of muriatic and phosphoric acids. 
5. Milk. 
In this fluid, the separation of albuminous matter at the 
negative pole, is equally evident, though not so rapid, as in 
most other cases. The conductors from sixty four inch double 
plates, highly charged, and immersed within four inches of 
each other in three ounces of cows milk, during one hour, 
produced the appearance of curds and whey, the principal part 
