XI 1 



$. Essay on the production, nourishment, and operation 



of plants and animals - - 211 

 Sect. 1. Creatures produce their own kind - ib. 

 Sect. 2. The laws of nature suiiicient for the produc- 

 tion of animals and vegetables - - - 215 

 Sect. 3. Of the nourishment and growth of plants 217 

 Sect. 4. Of the nourishment and growth of inirnals - 220 

 Sect, 5. The similar operations of plants and animals .224 



CHAP. III. 



Of Metals ) Minerals, and other Fossils. 



1. The variety of fossils 232 



52. The general properties of metals - 233 



3. Of the nutrition and generation of metals ib. 



4. Of gold, silver, platina, copper, iron, tin, lead 234 

 The chief properties of gold - ib. 

 The malleableness or ductility of gold beyond all imagi- 

 nation - - - 235 



Silver comes the nearest to gold in ductility and re- 

 sisting fire 236 

 Of platina, an original metal between gold and silver 



discovered in New Spain - ib. 



It is extremely hard to melt - ik 



It comes nearest to gold in weight of all other metals 237 



Copper is next to silver in ductility 259 



How brass is made - ib. 



