Before he went into Ireland, he sollicited, and no doubt he was an admirable good sollicitor. I have heard him say that in solliciting (with the same paines) he could dispatch severall businesses, nay, better than one alone, for by conversing with severall he should gaine the more knowledge, and the greater interest.
In the time of the warre with the Dutch, they concluded at the councell-board at London, to have so many sea men out of Irland (I thinke 1500). Away to Irland came one with a commission, and acquaints Sir William with it; sayes Sir William, 'you will never rayse this number here.' 'Oh,' sayd the other, 'I warrant you, I will not abate you a man.' Now Sir William knew 'twas impossible, for he knew how many tunne of shipping belongd to Ireland, and the rule is, to ... tunnes so many men. Of these shipps halfe were abroad, and of those at home so many men unfit. In fine, the commissioner with all his diligence could not possibly rayse above 200 seamen there. So we may see how statesmen may mistake for want of this Politique Arithmetique.
Another time the councell at Dublin were all in a great racket for the prohibition of coale from England and Wales, considering that all about Dublin is such a vast quantity of turfe; so they would improve their rents, sett poor men on worke, and the city should be served with fuell cheaper. Sir William prima facie knew that this project could not succeed. Sayd he, 'If you will make an order to hinder the bringing-in of coales by foreigne vessells, and bring it in vessells of your owne, I approve of it very well: but for your supposition of the cheapnesse of the turfe, 'tis true 'tis cheape on the place, but consider carriage, consider the yards that must contayn such a quantity for respective houses, these yards must be rented; what will be the chardge?' The<y> supputated, and found that (every thing considered) 'twas much dearer then to fetch coale from Wales, or etc.
Memorandum:—about 1665 he presented to the Royall Societie a discourse of his (in manuscript, of about a quire of paper) of building of shippes, which the lord Brounker (then president) tooke away, and still keepes, saying, ''Twas too great an arcanum of state to be commonly perused'; but Sir William told me that Dr. Robert Wood, M.D., aforesayd, has a copie of it, which he himselfe haz not: quaere Dr. Wood for it.
Sir William Petty died at his house in Peccadilly-street (almost opposite to St. James church[655],) on Fryday, 16th day of December, 1687, of a gangrene in his foot, occasioned by the swelling of the gowt, and is buried with his father and mother in the church at Rumsey in Hampshire. ☞ See his will.
My lady Petty was created baronnesse of Shelburn in Ireland, and her eldest sonne baron of the same, a little before the comeing-in of the Prince of Orange.
[656]Sir William Petty had a brother ..., like him, who dyed sine prole: he has his picture.—Quaere if I have mentioned Nan Green[657] out of the printed narrative?
[658]His picture by Fuller in his Dr. of M<edicine> gowne, a skull in his hand; then a spare man; <with a> little band; Veslingius' Anatomie by him. 'Twas he (Sir William) that putt Fuller to drawe the muscles as at Oxon gallery[659].