Chemistry

[Gk.] The Egyptians, Greeks, and Romans were acquainted with many of the sub¬ stances known to us at the present day, and also with the method of their preparation but among those nations nothing was known of chemistry as a science. During the Middle Ages the al¬ chemists experimented with numerous sub¬ stances, more especially with such as were of a metallic nature, with the object of turning them