Boyle WorkdiariesWorkdiary 38Page 36 of 36
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tho there were any deleted not any Ashes in the Vessell is farr from being true.

[Integral marginalia:]
Jun 10. 91.

A pound of {copper} [averdupois] weight being kept in the glasse house [days] 38 acquir'd 2 ounces & two dragms more of the same weight.

{copper} plates which <in>replacing 'at' the shop they were bought at weigh'd a lb averdupois weight, being kept in the glasse house in a heat capable to keep the deleted glasse in fusion for 38 days, app

Wee took {copper} plates cutt small which in the balance of the shop they were bought in weigh'd a lb averdupois & left them to calcine at a glasse in a heat capable of keeping glas melted at the end of 38 days we found the plates calcin'd & brittle as if they had been calcind with deleted by stratification with sulphur; & thô there remaind a small lump guess'd to <weigh>replacing 'be' about a dram that chancd to be left uncalcind yet the whole pound of {copper} appeard deleted being weighd in our balance appeard to have gaind computing by estimate some fragments that were employd upon tryalls, or casually lost about two ounces of [averdupois] weight.

[Integral marginalia:]
July. 23 91

{ounce} ii {oil} {vitriol} & {ounce} viii {drachm} vii sp. {urine} which was enough to satiate it, be deleted

{oil} {vitriol} {ounce} ii & deleted took {ounce} viii {drachm} vii of good [spirit] {urine} to satiate it, & being filtred & evaporate to a drynes gave a white {salt} but brownish towards the bottome weighing {ounce} i {drachm} vi g. LV.

[Integral marginalia:]
Aug. 91.

Wee mixed {ounce} xii of {sal ammoniac} & {lime} ana first well powdered & sifted & set them to run [per deliquium]