354 Dr. Prout on the Nature of some of the [May, 



Now if we assign to each of these elements the proportional 

 numbers that represent their atoms or combining weight, we 

 shall find that urea consists of 



2 atoms or 2 volumes of hydrogen . . 2-5 } » / hydrogen . 6-66 

 1 atom or 1 volume of carbon .... 7-5 ( 3 ) carbon. . . 19-99 

 1 atom or -i volume of oxygen . . . 1O0 ( |^ ^ oxygen . . 26*66 

 1 atom or 1 volume of azote 17*5 ) <- >s azote 46-66 



37n5 100-00 



Dr. Prout next examined the composition of the nitrate of 

 urea, which he found to be in 100 parts, 



Nitric acid 47-37 



Urea 52-63 



100-00 



or one atom of the former to two of the latter. 



He then proceeded to analyze sugar by the same process 

 which he had employed for urea ; the result was, 



Water 2'45 grains, 



Carbonic acid. 12-6 cubic inches - 



from which its composition is estimated at 



Hydrogen 0-266 



Carbon 1-599 



1-866 

 Oxygen 2-133 



4-000 

 corresponding to 



1 atom or 1 volume of hydrogen .. 1-25 ~\ „' r hydrogen 6-66 

 1 atom or 1 volume of carbon .... 7-5 > £ < carbon . . 39'99 





1 atom or -i- volume of oxygen .... 10-0 J g L oxygen. . 53-33 



18-75 100-00 



Diabetic sugar and the sugar of milk, when submitted to the 

 same mode of analysis, afforded results so nearly similar to the 

 above that the author regards them all as essentially the same 

 substances affected a little in their external characters by small 

 quantities of some extraneous substanee. 



Four grains of hthic acid, treated in the same manner, yielded 



Water 1-05 grains. 



Carbonic acid 11-0 cubic inches. 



Azote 5-5 ditto. 



