as deduced hy Jiimselfand Dr. Suerman. 

 (1.) 



269 



(2.) 



. , \ June 27, 



A^°'^ } July 31. 



Carbonic 

 Acid... 



Carbonic 

 Oxide. 



Hydrogen 



Nitrous 

 Oxide 



53-8 35-5 

 65 41-3 



60 



53-8 



65^2 



67-3 

 67-5 

 66-2 



59 



52-; 

 65 

 68 



67-5 

 65 



40 



36-5 



42-7 



43-5 



43 



42-4 



42-8 

 38-9 

 46 

 48 



44-5 

 42-5 



18-3 



23-7 



20 



17-3 



22-5 



23-8 

 24-5 

 23-8 



16-2 

 13-4 

 19 

 20 



30-225' -2915 

 30-330j -2735 



30^0 14' -3135 

 30-225, -3178 

 30-330, -3021 



30-140, -2952 

 30-000, -2874 

 30-218 -2774 



Air per 

 cent. 



30-014 



30-225 

 30-330 

 30-114 



23 30-114 

 22-5 30-218 



•4262 

 •4475 

 •4000 

 •4092 



•3173 

 •3013 



11-4 

 12 



8-2 



4 

 7 



7-5 

 5 



■2915 

 •2735 



•3137 

 -3211 

 •3043 



■2952 



•2874 

 •2774 



•4317 

 •4590 

 •4099 



Means. 



•S}-^^~ 



4151 -4005 



27-5 -3327 

 14 -3071 



-2876 

 •2921 

 •2933 



•3003 



-2772 

 -2825 



•3961 

 •4175 

 •3946 



•3210 

 •3085 



•2910 



•2863 



•4022 



•3147 



Upon these results I never placed much reliance. The 

 apparatus employed was very imperfect, particularly in not 

 allowing more than a single experiment with the same quan- 

 tity of gas; and I also saw reason to doubt that I had in every 

 instance by means of it accomplished perfect desiccation. 

 The difference, however, between my number for hydrogen 

 and that of De la Roche and Berard, which has hitherto 



