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-2. Tubai Cain, and those ancients who wrought, in 

 brass and iron, well understood the chymical 

 process . . . ib. 



31 By the power of chymistry Moses rendered the 



golden calf potable . 2 



Experiments in chymistry, of Frederic the Third* 

 King of Denmark . . 29 



4. The mummies kept so long in high preservation, 



demonstrate the skill of the Egyptians in chymistry ib. 



5. The ancients' manner of painting on linen pro- 



ceeded from their knowledge of chymistry . 30 



0. Their method of imitating precious stones ; 31 



7. Their pharmacy much depended on chymistry ib. 



8. The invention and use of the alembic . 33 



9. The ancients knew the various qualities of salts 34 



10. Cleopatra, by the aid of chymistry, dissolves a pearl 



of great value in acids v . 35 



1 1. The ancients had a method of rendering glass ductile ib, 



12. Democritus, the pafent of experimental philosophy, 



imitates nature in her production of precious stones 33 



13. The ancients knew the use of gunpowder . ib. 



14. Objection urged > and clearly refuted 40 



CHAP. VI. 



Of Sensible Qualities. 



I. That sensible qualities exist in the mind- , 42 



0, 3. Descartes and Mallebranche's opinions on this 



subject , . 43-*4'A 



