9 8 



Scientific Proceedings (73). 



permanent inhibition, as later on the average curves for heated 

 and control animals are essentially the same. In Series III there 

 were only two occasions in which the lowest serum strength for a 

 heated rabbit fell below the highest for a control rabbit; and in 

 Series IV, not one. 



The wide variations exhibited in individual animals preclude 

 the possibility of drawing definite and final conclusions from these 

 results, but their general tendency, as evidenced by averages, 

 agrees with the results of the other observers cited and they 

 strongly suggest that moderately high air temperatures (30 0 ) do 

 not favor the development of immune bodies in the blood as 

 higher temperatures producing a condition of fever have been 

 reported to do, but on the other hand may be distinctly inimical 

 to such development. 



