An account of several new inventions and improvements now necessary for England, in a discourse by way of letter to the Earl of Marlborough, relating to building of our English shipping, planting of oaken timber in the forrests, apportioning of publick taxes, the conservacy of all our royal rivers, in particular that of the Thames, the surveys of the Thames, &c. : Herewith is also published at large The proceedings relating to mill'd-lead-sheathing, and the excellency and cheapness of mill'd-Lead in preference to cast sheet-lead for all other purposes whatsoever. : Also A treatise of naval philosophy, / written by Sir Will. Petty. ; The whole is submitted to the consideration of our English patriots in Parliament assembled.

Of NAVAL OECONOMY or HUSBANDRY. The Third PART.

HAving determined the number of the Tuns of Ship∣ping of which the whole Navy is to consist, and how many Ships in number they ought to be; as also how many of each size and rate, and in what and how ma•••• Harbou•• they are to be kept, so as to be ready to put to Sea upon any Occasion: it remains to set forth how the same may be done wtth the least Charge, and with the least Expence of forreign Commodities, to which purpose the following particulars are to be considered.

1. Forasmuch as a Ship doth commonly Reign about thirty years, it follows, that the 30th. part of Tunns 〈◊〉〈◊〉 Shipping, of which the whole Navy consists, must be 〈◊〉〈◊〉 built every year, the which may probably cost 15 l. 〈◊〉〈◊〉 Ann. with Gunners, Boatswains, and Carpenters stores.

2. The Charge of the English Navy in ordinary has by experience amounted to 20 s. per Tunn, per Annum.

3. For charge of maintaining a Man of Warr at Sea, com∣pleatly fitted, victualled, and manned, with the expence, wear, and tear of all manner of stores, doth amount to 24 l. per Ann.

4. There are Estimates by which Money must be provi∣ded for the use of the Navy, but by good husbandry the Charge may be defrayed at a more easie Rate; wherefore we shall in the next place describe Historically the present way of managing his Majesties Navy in England, and after∣wards make some animadversions upon each of the three great branches of that Expence, which is Wages, Victuals, and Stores, subdividing each of them again into several other branches as the Nature of the thing and Custom requires.

FINIS.