Ill 



tained, besides which is given the value x calc., which 

 as above indicated is calculated from the formula 



x [np - (1-x)] - K (I-*)' 



where n is the amount of antitoxin (0,1 1,0) and x 

 the toxicity; p was found = = 6,0. K at 37,25 C = 1,18, 

 at 2Qo C = o,25 



Table 12. 



The concordance is in both cases very good, espe- 

 cially at the high temperature. According to log. nat. 

 1,18 = 2,3025 . 0,0719 and log. nat. 0,25 = 2,3025 (0,39791) 

 from the above formula the following value of W is 

 obtained 



W= 



2,3025(1,07190,3979) 



310,25 - - 293 



L . 293 . 310.25 . 1,99 = 6600 cal. 



- 76 



