SECTION II. CHEMISTRY. 19 



*rn. 



Two bound MS. copies of Yarworth's "Processus," both incomplete. 

 A MS. book on Alchemy, containing 



The apocalyps or revelation of the secret spirit, by an un- 

 known author. 



Quotations from divers writers on alchemy. 



An unknown author upon the philosopher's stone. 



Ex epistola Johannis pauperis. 



De Alkymiae veritate Se Aa7rtSi/3vs &c. 



The breefe of Sir Edward Vere's book. Aug. 18, 1610. 



IV. NOTES OF EXPERIMENTS, ALL IN NEWTON'S HAND. 



1. Dec. 10. 1678 to Jan. 15. Subliming antimony with salam- 

 moniac. Alloying antimony with lead and other metals. (No definite 

 result of value.) 



2. Jan. 1679 80. Subliming antimonial sublimate with lead 

 antimoniate &c. Jan. 22. Action of nitric acid and salammoniac on 

 antimony sulphide &c. and further sublimations. (Most of these 

 experiments are roughly quantitative.) 



3. Feb. 1679 80. Fusing antimony with vitriol and other 

 things. Sublimation of various metals by help of antimony and 

 salammoniac &c. Action of oil of vitriol on galena, of nitric acid 

 on sublimate of antimony, and others of a like kind. 



4. Aug. 1682. Similar experiments; some on lead ore, others 

 on an alloy of tin and bismuth which he seems to call Diana. 



5. July 10 (no year), "vidi >j<philosophicum." Sublimations of 

 calx albus with salammoniac. 



6. April 26, 1686. On a volatile salt of zinc (apparently the 

 chloride), and on an alloy derived from ores of iron, antimony, tin, 

 lead, and bismuth. May 16. "On ven. vol." 



7. Mar. 5, 1690 1 and Mar. 16. On some bismuth compounds 

 and the action of aqua fortis on alloys of tin and bismuth and zinc. 



8. Experiments and observations, Dec. 1692 and Jan. 1692 3. 

 Working of barm. He says " in distilling new wine before fermenta- 

 tion, the flegm rises first, and then the spirit, but after fermentation, 

 the spirit rises before the flegm." Other experiments. Comparison of 

 the fusibility of alloys of lead, tin, and bismuth, in which is given 



22 



