Boyle WorkdiariesWorkdiary 20Page 2 of 3
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July 9th
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5
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The Venereall Gum mentiond number the [space of 4-5 characters] <3d>[insertion in line in pencil ] being powderd & put into strong spirit of Salt did presently turne it of a deepe muscadine colour. <On>[replacing 'And'] another parcell of the same powderd Concrete, some spirit of nitre being put, it wrought thereon e'vn in the Cold like aqua fortis upon Sylver & [dassel][unclear] reducd it to a deepe greenish blew solution.

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This day was put into a large Bolthead {drachm} iv of oyle of vitrioll, to which haveing powerd the like weight of Alcool of wine, the whole ([wimd][unclear]) cavity of the glasse was made very white & opacous by the fumes copiously ascended from the mixture, if not only from the {spirit of wine}. Though I did not shake the Liquors together yet the bottome of the glasse grew soe hot that I could not indure it for 1/2 a minute, And haveing purposely layd it by in a coole place I came 2 or 3 howers after to try if [ 'by shakeing it' deleted] I could not e'vn then by shakeing & soe makeing a further mixture, produce a heat; accordingly I found that I could excite a considerable one, & that did not quickly vanish

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July 10th
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7

The venereall gum mentiond nro the [space of 2-3 characters] being to the Quantity of about a small Beane dissolvd in good Spirit of Salt the solution continued for 2 or 3 days of a thick muscadine colour as is mentiond nro the <5th>[insertion in line in pencil ], but afterwards, [moisting][unclear] [ 'with' deleted] leisurely with it the sides & Bottom of a wide wine glasse, the fourth day the sides appeard to be full of greene branches not unpleasant to behold, & at the end of 4 days the bottom was for the most part coverd with tuffts['ts' altered from 'd'] of christall