CONTENTS
VOLUME  FOURTH.
MINERALOGY,  CLASS  I.  ORDER  III.  Aggregates
SEcr.  I.  Aggregates  of  earths
II.  Aggregates  of  amorphous  stones
III.  Aggregates  of  crystals
IV.  Volcanic  aggregates
Appendix—Of  mountains
CLASS  II.  Salts
III.  Combustibles
IV.  Metallic  ores
ORDER  I.  Ores  of  gold  II. -
  .  .  .  .  platinum
III.  .  .  ..  silver
IV.  ....  merćury
V.  .  .  .  .  copper
VI.  .  .  .  .  iron
VII.  .  .  .  .  tin
VIII.  .  .  .  .  lead
IX.  .  .  .  .  nickel
X.  .  .  .  .  zinc
XI.  .  .  .  .  antimony
XII.  .  .  .  .  bismuth
XIII.  .  .  .  .  tellurium
VoL.  IV.

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