1879.] Physiology of Sugar in relation to the Blood. 527 



IY. Blood from sheep, in fresh state, with sugar added 

 After standing for 7 hours at slightly raised 



temperature 



After passage of oxygen for 7 hours at 



slightly raised temperature . . . . , 



After passage of carbonic acid for 7 hours at 



slightly raised temperature 



After passage of hydrogen for 7 hours at 



slightly raised temperature 



Y. Blood of sheep, in fresh state, with sugar added 



After standing 6^ hours at 100° F 



After the passage of oxygen for 6i hours at 



100° F 



After the passage of carbonic acid for 6k 

 hours at 100° F 



VI. Blood from sheep, in fresh state, with sugar 



added 



After standing 64 hours at 100° F 



After the passage of oxygen for 6£ hours at 



100° F 



After the passage of carbonic acid for 6i 



hours at 100° F 



VII. Blood from sheep, in putrid state, with sugar 



added 



After standing 6 hours at 100° F 



After the passage of oxygen for 6 hours at 



100° F L 



After the passage of carbonic acid for 6 



hours at 100° F 



VIII. Blood from sheep, in putrid state, with sugar 



added 



After standing 6 hours at 100° F 



After the passage of hydrogen for 6 hours 



at 100° F 



Sugar per 1,000 parts. 

 By ammoniated cupric 

 process. 



1-850 



1-550 



1-525 



1-525 



1-570 



1-475 

 1324 



1134 



1-209 



1-775 

 1-567 



1-475 



1-492 



1-324 

 0-667 



0-606 



0-654 



0-551 

 0-218 



0-233 



The following conclusions may be expressed as constituting the 

 issue of the results recorded in this communication : — 



That the results bearing on the physiology of sugar in relation to 

 the blood derived from the application of the gravimetric process, and 

 given in my former communication to the Royal Society (vol. xxvi, 

 p. 346), are confirmed by those yielded by the ammoniated cupric 

 test, described by me in the " Proceedings," vol. xxviii, p. 260. 



That the disappearance of sugar from the blood after withdrawal 

 from the system takes place in the gradual manner that might be 

 expected from the effect of ordinary decomposition, and presents 

 nothing to support any conclusion regarding the destruction of sugar 

 in the blood as a physiological phenomenon. 



2q 2 



