printed for W. Johnston, in Ludgate-Street; and B. Law, at the Bible and Ball, in Ave-Mary-Lane

printed for W. Johnston, in St. Paul's Church-Yard; and P. Davey and B. Law, in Ave-Mary-Lane

printed for and sold by the author in Bristol; W. Johnson and B. Law, in London

printed for and sold by the author, at Bristol

printed for J. Johnson, opposite the Monument

printed for W. Johnston in Ludgate-Street, and B. Law, at the Bible and Ball, in Ave-Mary-Lane

printed for the author. Sold by Messrs. Mount and Page, on Tower-Hill; Mr. Johnson and Co. in Pater-Noster-Row; and Mr. B. Law, in Ave-Mary-Lane, Booksellers. Mr. Adams, and Mr. Martin, in Fleet-Street; and Messrs. Heath and Wing, Mathematical-Instrument-Makers, in the Strand. London

Sold by J. Johnson, in St. Paul's Church-Yard

published by the author, M.DCC.LXXXVII. Sold also by most of the principal Instrument-Makers in London

printed for J. Johnson, in St. Paul's Church-Yard

Printed for B. Law, Ave-Maria-Lane

Printed for the author, and sold by the booksellers of Devon; by Mr. Johnston, in Ludgate-Street; Mr. Law, in ... Lane; Mr. Johnson, opposite the monument; Mr. Baldwin, in Pater-noster-Row; and the Book sellers of London

printed for B. Law, in Ave-Maria Lane

Printed for J. Johnson, in St. Paul's Church-Yard

Sold by. J. Johnson, in St. Paul's Church-Yard; and B. Law, in Ave-Mary Lane, London:- also at the Academy, in Bristol

printed for B. Law, in Ave-Maria-Lane

sold by Messrs. Mount and Page, on Tower-Hill; B. Law, in Ave-Mary-Lane; J. Johnson, St. Paul's Church-Yard; R. Sayer, in Fleet-Street; Messrs. Heath and Wing, in the Strand; and by the author at Bristol. Of whom may be had, the instruments

printed for and sold by the author. Sold in London by Messrs. Vernor and Hood, Booksellers, Birchin-Lane, Cornhill; and by the following mathematical instrument makers: Mr. Adams and Mr. Troughton, Fleet-Street, and Mr. Jones, Holborn