4 'STD OTHER PHEN^O^IENA OH EESPERATIOE. 
714 DR. E. SMITH ON THE CHEMICAL 
PLATE XXXIV. 
Shows the quantity of carbonic acid expired, and of air inspired, pel minute, with the 
Shows the q ^ y ^ and respn-ahon at the 
saL horn-, and under the same circumstances, on about 200 ^ 
year in relation to the temperature, with the wet and 7 
season of the yeai'. There were two subjects for experiment untd the mid 
of June The opposition of sudden changes of temperatui-e, and the expira- 
L of carbonic add, is best seen from April 14 to 28. The pro^essire seasonal 
diminution in the expiration of carbonic acid commences at the beginnmg 
June and ends hi September, fi-om which period the progres.ve increas 
occurs until January, and thenceforward the quantity is shown to be neaih 
nnifnrm . 
