56 Improvements in Physical Science (Jax. 
this fish, from which they concluded that it contained a quantity 
of phosphorus as a constituent. These experiments induced Pro- 
fessor John to subject the substance in question to a chemical 
analysis. He could not detect the presence of any phosphorus, 
The constituents which he found in this milt were the following: 
(Schweigger’s Journal, vol. x. p. 168.) 
Water. Phosphate of lime. 
Insoluble albumen. Phosphate of magnesia. 
Gelatine. ; Alkaline phosphate. 
Phosphate of ammonia. 
5. Bile altered ly Disease.—Professor Rudolphi put into the 
hands of Dr. John for chemical analysis an enormous human gall 
bladder, whick contained six ounces of altered bile, and 20 gall 
stones ; two of which were of the size of a hazel nut. The result 
of the analysis of 84. ounces of this altered bile, by Dr. John, was 
as follows: 
oz. dr. gr. 
Water ijs,.S)pinis,- min iaje cia sinspiinit ne Wie'ie aussie Reais om ates mee me Beet 
Albumen) ifs): a2 sje; disse aie'e Shei eo comes ok = eipeleysie! } paar MD hee 
Adipocire of bile ..eeessecccececcerenscessesees O O OF 
OpmaZorn $), shen; p55 0 ssi bs Hewwigin'e tig «im (a  ajmegeiete/ ofa ON gig ised 
Mucous jelly ..... widely Silo od piers (p vlisiniihcb fa wid jae” Cy a 
An ammoniacal salt 
Phosphate of lime 
Lime united toa combustible acid 
Phosphate of iron cocecccscesscs OO 5} 
Potash, a trace 
Sulphate and muriate of potash 
Alkaline phosphate 
340 O 
6. Urine in Hepatitis —A curious discovery, which may lead to: 
important physiological and medical deductions, has been made by 
Mr. Rose of Eye, who published an account of it in the Annals 
of Philosophy, vol. v. p. 424. He found that in all diseases of 
the liver, whether chronic or acute, the urine contains no urea. 
This unexpected fact has been more recently confirmed by the 
experiments of Dr. Henry. (Annals of Philosophy, vol. vi. 
p- 392.) So that its truth seems to be sufficiently established. 
7. Presence of Carbonic Acid in Urine and Blood.—Proust announced 
a good many years age, that he had detected the presence of car- 
bonates and carbonic acid in urine; but doubts were entertained of 
the accuracy of this opinion, because it was known that urine con- 
tains a portion of uncombined phosphoric or acetic acid. But 
Vogel has lately shown by a very simple experiment, that carbonic 
acid gas exists both in urine and blood. He put a quantity of fresh 
urine into a glass flask, to which was luted a bent glass tube, the 
mouth of which dipped into a vessel containing lime-water. This 
apparatus being put under the receiver of an air pump, the air was 
