CONTENTS. xl 



CHAP. IX. 



Page 

 Of the Sexes of Animals — The mental and corporeal differences 

 betiveen males and females — Some animals endowed -with both 

 ftxes in the fame indi'uidual - - - - 236 



Sect. II. Of the Sexes of Plants - - - 245 



CHAP. X. 



Of Puberty — Itsfymptoms and effe£ls in different animals - 264 



CHAP. XL 



Of Love — Its expreffions and effects in different animals — Pair- 

 ing — Scafons — Parental affedion - - - 269 



CHAP. XII. 



Of the Transformation of Animals — Transformation of the cater- 

 pillar tribes — of frogs, <iyc.—All animals undergo changes in 

 their form and afpe£l — What are the probable intentions of 

 Nature in changing forms _ _ - - - 280 



CHAP. XIII. 



Of the Habitations of Animals — Their different modes of con- 

 fir u£iing abodes for nvarmth and prote£lion to themfehes and 

 their offspring — The form and mmvier of their habitations ac- 

 commodated to the exigencies of the animal - - 310' 



h 2 CHAP. 



