The mariners magazine, or, Sturmy's mathematical and practical arts containing the description and use of the scale of scales, it being a mathematical ruler, that resolves most mathematical conclusions, and likewise the making and use of the crostaff, quadrant, and the quadrat, nocturnals, and other most useful instruments for all artists and navigators : the art of navigation, resolved geometrically, instrumentally, and by calculation, and by that late excellent invention of logarithms, in the three principal kinds of sailing : with new tables of the longitude and latitude of the most eminent places ... : together with a discourse of the practick part of navigation ..., a new way of surveying land ..., the art of gauging all sorts of vessels ..., the art of dialling by a gnomical scale ... : whereunto is annexed, an abridgment of the penalties and forfeitures, by acts of parliaments appointed, relating to the customs and navigation : also a compendium of fortification, both geometrically and instrumentally / by Capt. Samuel Sturmy.

To my much Honoured Friend Isaac Morgan Esq; Collector of his Majesties Customs in the Port of Bristol.

SIR,

NOt to inform your Judgment in any thing concerning the Subject Mat∣ter of these my poor Labours (your Wisdom and approved Knowledge in all Learning being so general, that I can add nothing unto it) but to inform the World how much I honour you and your Vertues, and by how many Obligations I stand engaged to you for the many signal Favours you have vouch∣safed me since the time I came first into this Port, I dedicate this Part of my Book, as the proper Part of the fruits of my spare time, in twenty se∣ven Dials, unto you presented as an unworthy New-years-gift; and that Dial-piece being the Subject of the whole Art of Dialling, I will name the Dials, that I may charge you to Patronage no more than you had; viz. Eight Verticals and De∣cliners, Eight Recliners and Incliners, and Eight Decliners, Recliners, and Incliners, a Globe with two Pole-Dials, and one Shadow-Dial, made on a Piece of Freez-stone, as is seen in the Fron∣tispiece the Gnomon or Stile fastned by me, and likewise Painted and Guilded, which is well

known by you and many others: And being de∣sired by some Friends that saw my way, and this Piece of Dialling, to Print it, by their impor∣tunity, according to the best of my judgment, I have so done; and if any way profitably, then ac∣cording to mine own desire. As it is, I have made bold to make choice of you for the Patronage thereof, that it may gain the more Credit by your Protection; And if any shall be offended at this Work, my Device shall be a Dial, with this Motto, ASPICIO UT ASPICIAR; only to all Fa∣vourers of ART I am direct, erect, plain, as I am, Sir, to you, and desire to be,

SIR,

Your humble and affectionate Servant to be commanded, SAMUEL STURMY.

St. Georges the Pill, ♃ 29 Aug. 1667.