Scientific Proceedings. 



(103) 39 



The same result was obtained on man. The starvation nitro- 

 gen was obtained by analysis of the urine and feces during a fasting 

 period of three days, and equilibrium was then established at this 

 level on a mixed diet containing two thirds of the nitrogen in meat, 

 the other one third in cereals. Then for two days the meat nitro- 

 gen was replaced entirely by gelatin nitrogen, the other one third 

 remaining the same, and the potential energy supplied was in- 

 creased from 40 to 48 cal. per kilo of body-weight by giving more 

 cane-sugar, which served at the same time to make the gelatin 

 more palatable. The nitrogen equilibrium w T as not disturbed 

 during these two days nor on the two following days, when the 

 diet was exactly the same as before the gelatin period. 



12 (58). "The reductions in the body in fever," with demon- 

 strations : C. A. HERTER. 



The author called attention to the influence of temperature on 

 the activity of reduction in the living organism as indicated by 

 intravital infusion of methylene blue. Elevation of the body tem- 

 perature greatly accelerates the rate of reduction in the tissues. 

 This was demonstrated by means of an intravital infusion of methyl- 

 ene blue in a rabbit, whose body temperature had been elevated 

 to 42 0 C. through the external application of heat. Simultaneously 

 with this infusion, another infusion was made in a rabbit of approxi- 

 mately equal weight, in which the temperature was maintained at 

 about 39 0 C. In other respects, the conditions of the infusion were 

 as nearly alike as possible in the two animals. A definite contrast 

 was noted at the close of the infusion between the organs of the 

 two animals as respects their color, the normal rabbit showing more 

 color than the one in which the temperature had been elevated. 

 The differences in the nervous system and the muscles were par- 

 ticularly striking. Even during life, an inspection of the muscles 

 indicated that the reduction was carried on with greater rapidity in 

 the heated rabbit than in the normal one. Previous observations 

 on the reducing action of the animal body under the influence of 

 cold were referred to. 



1 3 (59)- " The measurement of the reducing processes of ceils 

 in vitro," with demonstrations: 0. A. HERTER. 



An apparatus was demonstrated which had been devised for 

 the purpose of measuring the reducing processes of the different 



