C 6 .7 ] 
mafterly performance, and a thing of the greateft 
merit and importance in navigation. 
That there is a refpeCt due to Edward Wright for 
his invention, that his principles are true, that Mr. 
Weft or his editor, and both (if both of the fame 
opinion) are falfe, is moft certain. 
That the characters and abilities of Dr. Halley, Sir 
Jonas JVfoore, Mr. William Jones, Mr. James Hodg- 
fon, Mr. Hafelden, and many others, for they are 
almoft numberlefs, both of higher and lower mathe- 
maticians, who have wrote on the certainty and uti- 
lity of Wrights chart, I fay, that the characters and 
abilities of thefe able geometricians are attacked 
by Mr. Weft and his editor, and by the Critical 
Reviewers, is plain, and that this will have great 
weight with many not over well acquainted with ge- 
ometry is no lefs plain. And what will an honeft 
feaman fay, who knows but juft to make his calcu- 
lations, when he reads the account given in this book, 
of Mercator’s chart ? And what muft thofe gentle- 
men among the fubfcribers to Mr. Weft’s book fay 
or think, who, not being quite mafters of geometry, 
are at liberty to believe or difbelieve Dr. Halley and 
many others, or Mr. Weft and his editor ? Thofe who 
are mafters of geometry muft fee the error. 
But there are other circumftances; Edward Wright 
himfelf gives the very fame conftruCtion by his words, 
as Mr. Weft doth, although his tables make out 
quite another thing, that is, both Wright and Weft 
fay exprefsly, the fphere being infcribed in the hollow 
cylinder, and the equinodial remaining fixed with- 
out fwelling whilft the other parts fwell towards the 
poles, the chart will be formed. Butin this, Wright 
L 2 hai 
