Table I. Qualitative evaluation of precipitates in gel diffusion of sera from "normal' 

 and "cold exposed" rabbits. *U value of Mann- Whitney U test at 0.0 5 significance level = 

 17. Antigen- whole bovine serum. 



Table II. Quantitative evaluation of precipitates in gel diffusion of sera from "normal' 

 and "cold exposed" rabbits. •U value of Mann- Whitney Utest at 0.05 significance level = 

 17. Antigen- whole bovine serum. 



114 



