| Show AbLE TO ENDURE MUCH COLD Some Microbes Are Killed Only by 256 Degrees Below Zero Tho extremes of heat and cold at which life can exist havo much greater great-er range than would be expected For some animals the greatest heat that call bo nulltircd Is 105 degrees whllo tire as wo commonly understand It cannot endure beyond 130 degrees at which temperature albumen coagulates coagu-lates But there arc certain forms of lICe that can stand much more heat Some mollusks are not Incommoded until 120 degrees Is reached whllo the larvae lar-vae of flies will endure ICC degrees md certain kinds of worms arc not killed until a temperature of 178 degrees de-grees Is reached As to cold It might almost be said that no cold Is great enough to destroy de-stroy all traces of life certainly no natural cold Is great enough It Is only hy the extreme cold produced by nr Iflclal means that all life Is ended For frogs tho limit Is 18 below zero for myrlapods G8 below for snails 184 below a greater cold than Is produced by nature Hut tho greatest cold registers are ho bacteria The germs of tho plague mvo kept their vitality for several months In a temperature of 24 below those of diphtheria have remained alive after being Immersed for an hour In a refrigerating solution at 7G below The greatest cold sustained Is by ho germs of tuberculosis which are not affected by 148 below and succumb suc-cumb only to cold represented by 250 below zero i |
