4il ANIMALGULA OF INFUSIONS. L 



the head of a frog, toad, lizard, fnake, or viper^ 

 or take out the heart, or deprive them of fome 

 member during winter, while torpid with th6 

 cold, and. apparently more dead than alive, they 

 furvive the operation much longer than if they 

 undergo it in fummer, when in the vigour of hfe. 

 1 have often admired this fad ; and that infeds 

 immerfed in water in winter live longer than if 

 immerfed in fummer. 



There is no doubt that the life of plants is 

 weaker while included in feeds than after they 

 are produced ; and why may not this leffer life, 

 as wjth the germ of an animal in the egg, render 

 them lefs fenfible of the impreffion of heat ? In 

 winter, when plants are furely lefs aUve than in 

 other feafons, are they not lefs liable to perifh on 

 being rooted up, wounded or mutilated, than on 

 doing this during fummer ? 



I fhouid not fuppofe that the reafon why eggs 

 are more unfit for fupporting heat than feeds i^ 

 from the greater foftnefs of the former, becaufe 

 there are feeds not nearly fo hard as the ihell of 

 an egg, and flili capable of fupporting the heat 

 of boiling water, as trefoil feeds, but from fluids 

 being more abundant in the egg, by means of 

 v/hich heat has more influence in deftroying the 

 germ. Experiment renders it undoubted, that 

 the fluids of eggs, and confequently of their 

 germs, are more abundant than in vegetable feeds. 



That 



