vHi CONTENTS. 



CHAPTER II. 



Whether the influence of heat diminlfhes the elaflicity ^ 

 of air included in velTels hermetically fealed ; and 

 if it would be an obftacle to the produftion of 

 Animalcula - - - -- - IJ 



CHAPTER III. 



Eggs and Animals. — Seeds and Plants expofed to 



different degrees of heat - - - - 3" 



CHAPTER IV. 



Ir.fufion Animalcula and their germs, expofed to va- 

 rious degrees of cold - • - - 5$ 



CHAPTER V. 

 More accurate and extenfive confiderations of the ef- 

 fefls of heat and cold on animals - . gj 



CHAPTER VI. 

 Infufion Animalcula expofed to various odours and 

 liquors, to eledricity, and a vacuum - 98 



CHAPTER VII. 



Singular mode in which many Animalcula propa- 

 gate - - - - - - 118 



CHAP. 



