JOURNAL 



OP 



NATURAL PHILOSOPHY, CHEMISTRY, 



AND 



THE ARTS. 



JANUARY, 1813. 



ARflCLE I. 



Comparative Analyses of the Urine of different Animals. By 

 Mr. Vaugiuelin*. 



THE only kinds of urine, that chemists have hitherto ana- Few kinds oi? 

 Jysed in a satisfactory manner, are those of man, and some "J^ 6 sa ^ sfac - 

 of the larger herbivorous animals. Those of the carnivorous ed. 

 animals and glires have not yet been examined by any person 

 that I know of. 



If it be acknowledged, however, that comparative anatomy Comparative 

 has contributed much to the advancement of physiology, it will com mended." 

 also be found, perhaps, that comparative chemistry may be of 

 great advantage to that science. i 



Already has the analysis of the urine of birds afforded re- ^" ne °* hirds. 

 suits sufficiently interesting and unexpected, to induce chemists 

 to pursue the inquiry in all animals that furnish this fluid, that 

 we may not judge from analogy, which is frequently deceitful. 

 It is with this view, that I have undertaken the analysis of the 

 urine of the royal tiger, the lion, and the beaver - f the results 

 of which I here give, till I have time to pursue my inquiry Qn 

 this subject farther. 



* Ann. de Chim. vol. LXXXII, p. 197. 

 Vol. XXXIV.— No. 156. B Urine 



