A Testimonial
Printed in John Gordon’s Mathematical Traverse Table, &c. Printed in the Year 1758, and Sold by Mr. W. Dunlap, in Philadelphia, Mr. G. Noel, in New-York, Mr. B. Mecom, in Boston, and by the Author. (Yale University Library)
New-Jersey, March 8th, 1757.

We are of Opinion that if the above Tables were printed and published, they would be of great Use to the Public, in Measuring of Land and other Branches of the Mathematicks.

John Lawrence,
Jonathan Hampton,
Surveyors.

I am of the above Opinion.

Nicholas Scull, Surveyor Gen. of Pennsylvania.

Philadelphia, March 11, 1757.

The above written Mr. Scull is well known to be one of the best Judges of these Matters in this Province, and therefore any Opinion of mine, or Certificate, is unnecessary after his.

Benjamin Franklin, Post Master General.

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