Show hog cholera serum gool goo clean hog bog cholera serum usual ly retains its po potency teny for or at least a alir ir after ti allu if 1 kept cold and in fix lim jim light farmers frequently order more serum than they need arid and then u wish ish to knott knon whether it can be safely put ana for future use NN hen a erum bottle has been opened and the berum exposed to tile the air except in the hands of a ery cry careful and expert pert operator aitor it is nor likely to be ba contaminated and spoiled tor for future use ase SI INI 11 II Renol db veterinarian |