394 



Dr. E. H. Embley. 



[June 13, 



The experiments, records of which appear in figs. 1, 2, 3, and 4, demonstrate 

 the gradually -increasing effects upon the isolated heart of varying percentages 

 of ethyl chloride in the air inspired. 



size of original. 



The effect upon the work done by the heart was as follows : — 



Expt. 1. 10 p.c. ethyl chloride administered. Blood-press, feirfrom 92 to 58 mm. Hg in 8' 15" 



„ 2. 15 „ ' „ „ „ 158 „ 63 „ 3' 12" 



„ 3. 20 „ „ „ „ 160 „ 72 „ l'l" 



20 „ „ „ „ 160 „ 62 „ 0'59" 



» 4. 30 „ „ „ „ 164,, 34 „ 0'46" 



