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Mr. Dunn. — Mr. Weft therein declares that cc the er- 
“ rors of the plain chart are corrected, in a great mea- 
“ fure, by Mercator’s or Wright’s chart; tho’ the lat- 
* f ter is not a true projection of the fphere in any fhape; 
“ nor indeed is it pretended to be fuch by Mr. 
“ Wright, one of its inventors”. — The firft part 
of this paragraph furely contains a contradiction ; for 
how can the errors in the plain chart be in a great 
meafure corrected by a projection that is not true in 
any lhape ? And in anlwer to the latter part, — Mr. 
Wright has no where made fuch conceflions that I 
know of; — and further Mr. Welt blends Wright and 
Mercator together, when at the fame time it does not 
appear that the latter ever publifhed any principles 
of this kind of projection to the world. 
In the 20th article of the beforementioned book, 
Mr. Welt has laid down a method of conltruCting a 
nautical chart, which he alTerts to be “ the firft re- 
“ prefentation of the terraqueous globe ever yet in- 
“ vented, in which the meridians, parallels and 
“ rhumbs, are jultly and truly projected in right 
“ lines, for the latter cannot be fo projected in Mer- 
“ cator.” — If they cannot be fo projected in Wright’s, 
they cannot in his-, for in both, the meridians are laid 
to be right lines and parallel, and therefore the rhumbs 
mull be right lines alfo, or how can they interfeCt 
the meridians fo fituate at equal angles? 
He alfo faies in his fcholium, that “ It does not 
“ appear that Mercator or Wright ever thought of 
“ this projection ; for the meridian line here is mani- 
“ feftly a line of tangents ; whereas in their projec- 
“ tion, it is a collection of fecants.” 
Vol. LIII. M 
What 
