TUNEVALL AND LINDNER 



6 12 18 24 30 36 U2 48 54 60 66 



■^^'^"^ survival time. hours 



Figure 1. Survival times in mice given one MLD^qq of tetanus toxin. White parts of 

 columns mark period of hypothermia. Number of mice: Normothermic 9, hypothermic 8. 



Diff. 



24.5 6.2 < 0.001 



Formulae used: s = -h^^/ ^Cx-x) ■»■ X(y-y) » smd 



"^ n + n - 2 



X y 



t = D /"ley" 

 sVx + ^ 



Figure 2. Survival times in hours (M * e(M) ) of mice after subcutaneous injection 

 of equal doses of tetanus toxin. Start of hypothermia 2 hours, rewarming 48 hours aftef 

 the injection. 



138 



