Lutroduction. 13 
It would be tedious as well as unprofitable 
were I to enlarge on the loss of nerve-power 
my labours cost me. The names of the 
following books will give some idea of the 
amount of literary work alone to be done 
before one can hope to acquire anything 
but a superficial knowledge of the great 
subject. 
Roger Bacon, Zhesaurus Chemicus, 8vo, 
Francof., 1603. 
Francis Bacon Lord Verulam, Ast. of 
Metals, vol., London, 1670. 
J. J. Becher, Opera Omnia, Francof., 
1680. 
Chymia Philosophica, 8vo, Nuremberg, 
1639. 
John Espagnet, Luchiridion Philosophie 
HHermetice, Paris, 1638. 
Robert Fludd, Clavis Alchimia, 2 vols., 
Francof. 
T. R. Glauber, Works, Chemistry, fol. 
London, 1689. 
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