Boyle WorkdiariesWorkdiary 21Page 155 of 156
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11. or 5.

Hee told me that in Pegue they use to take their rubies out of the Sand in the Rivers with certaine long hollow Canes or poles with a contrivance at the End to take up Rubies, Sand, & all, & that the water in those rivers at Pegue that he saw was soe very clear that both others & hee could from the top of the water discerne rubies lying at the bottom at a very considerable depth.

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11.

Colonel G. Told me that one year with another there comes out of the Barbadoes [2]00 Ships or thereabouts of 100 Tunne apiece lad'n with Sugar, which amounts to 20000 Tun of Sugar.

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Black Lead is found at Boradell in Cumberland neare Cheswick & the river Darwinne, & near the great mountaine Schidda.

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11

He told me alsoe that <ordinarily>[replacing 'gener'] in the Barbadoes they have but about 2 foot in depth of Earth, whereof usually but on foot or a litle more is good mold.

Major H. told me that some times in Wales in Leadmines that hold Silver they find great Shods (as they call them) amounting to divers Tuns of Oare, which sometimes have noe particular coats of sparre but of clay & are usually somewhat near & beneath the veins sometimes with & sometimes without any [ 'visible' deleted] manifest connection to them or between them selves; & sometimes with strings as 'twere that passe frome one shod to another, & the miner think that there was an extravasation &c.

To about 100 {pound} weight of the other ingredients take about 8 {pound} of borax, & you need not calcine your metall into Frittæ alsoe about 1/20 of borax to ordinary Fritta will make the salts take up a far greater proportion of sand, than if the borax were an other Salt, & the product will be very clear & gentle.

Take about {ounce} i or a litle more of Borellio to 1 {pound} of Lead Oare, when you are to use it in the glasse Furnace.

Sandiver, though but in a moderate Quantity being melted downe with Lead oare makes the metall somewhat britle.

Remember the Steele to be temper'd with the juice of branca Ursina.

Remember the Observation of the Portugal Governour who told the English Unguie (from whom I had it) that in some [ 'cases' deleted] places (as I remember) near Angola they imploy women to dive for pearles & other things, because the ravenous Fishes there are observ'd never to bite them, though they devour their Negro husbands, who yet are oft'n times noe blacker than they.