22 CATALOGUE OF NEWTON PAPEES. 



p. 51, guesses heat to be made by division of parts, for when two 

 particles are parted it makes the aether rush in betwixt them and 

 so vibrate. Eeceipt for making Phosphorus (Brandt's). 



pp. 53 60, blank; pp. 61 65, extracts from Boyle on formes. 



p. 65, extracts from Starkey's Pyrotechny asserted. 



p. 66, note of a petrifying spring in Peru, from a Spanish treatise 

 translated by the Earl of Sandwich. 



pp. 57 70, blank; pp. 71 80, extracts from Boyle on formes. 



p. 80, experiments on the extraction of mercury from the nitrate 

 and from corrosive sublimate by various other metals. 



pp. 81, 82, receipts for making regulus of antimony by different 

 metals. 



p. 83, notes of alloys which fuse at low temperatures, and others 

 which give a crystalline mass from fusion. Notes of the action of 

 aquafortis, and of salammoniac, on salt, and oil of tartar or po- 

 tassium carbonate ; and of crude tartar on the same, and of tartarum 

 vitriolatum (potassium bisulphate) on same : with 



p. 84, the remark that some fools call the result of the last 

 reaction magisterium tartari vitriolati. 



note, that salammoniac is less volatile than muriatic acid or 

 ammonium carbonate, which seems to explain a quotation from D. 

 von der Becke which follows. 



note of calcination of lead with salt of antimony and salammo- 

 niac and of volatilization of arsenical tin when heated with corrosive 

 sublimate and salammoniac. 



pp. 85 92, extracts from Boyle. 



pp. 93 100, sundry receipts and extracts on various chemical 

 reactions, chiefly from Boyle. 



p. 101, receipts for making sundry preparations of antimony. 

 Note of the action of corrosive sublimate on various ores. 



p. 102, notes of experiments in the preparation of regulus of 

 antimony. 



p. 103, do. and of action of corrosive sublimate on antimony, 

 silver, and mercury; of the heat produced by mixing oil of vitriol 

 with water or spirit of wine ; of the preparation of ether and oil of 

 wine not differing much from the account quoted on p. 64. 



pp. 104, 105, note of warmth emitted on mixing water with 

 spirit of antimony, and of sundry chemical reactions the last on 



