| Description | His Majesty sent to the Society five little bubbles by Sir Paul Neile, two with liquor in them, & the other three solid, to have the judgement of the Company concerning them.
Describes Sir William Persall's Experiment; Take a handfull of the pouder of Roman Vitriol, put it into a galley pot in a pint of water, put in 2 or 3 small, Irons the length of a span, & 3 or 4 times a day constantly stirr the water & pouder, & move not the irons att all: but let them stand constantly in, night and day, and within the space of 3 weekes there will be crusted about the irons, as farre as they are in the water: a substance purer then copper which you may take off, and will be malleable.
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