( l 67 ) 
from the Accounts of others, and the Analogy of the whole# 
that in fuch Cafes I was forc’d to fupply what was want- 
ing ; and 5 tis poftible that there may be more Variation on 
that Coaft than I have allowed. But confuking my Chart 
( which was fitted to the Year 1700 ) 1 find I then make the 
Variation at the 1 fie of St Thomas full 7^ Gr and not j^Gr. 
the which, by the Year 1 708, might well arife to near 
r. So that the Difference will become very tolerable ; 
ereas an Error of 6 Degrees, fuch as is here reprefented, 
wouM render the Credit of my Chart juftly fufpecfted, and 
the fame by confequcnce wholly ulelefs, as not to be corn* 
fided in, 
But a further Thing I might complain of is, that in the 
fame Memoire of M. de Li[le, the Geography of my Chart is 
called in Queftion ; and we are told that I have placed the 
Entrance of the Magellan Straights at lead 10 Degrees more 
Wefterly than I ought to have done : for that the Ship 
St. Louis , in the Year 170 8 , failing from the Mouth of Rio 
Gallega , in about the Latitude of 5 2, Gr. South, and not 
far from Cape Virgin , direcSlly for Cape Bonne Efperance 
(which Courfe perhaps was never run before) had found 
the Diftance between the two Lands not more than 1350 
Leagues, which, he concludes, is much lefs than my Chart 
of the Variation makes it. I know not from what Compu- 
tation M. de Lijle has deduced this Confequencc, but I find 
by my Chart that 1 have made the Longitude of Rio Gallega 
7f Gr. Weft from London, and that of Cape Bonne Efperance 
1 61 Eaft from it ; that is in all 9 1 r Gr. difference of Longi- 
tude. This, with the two Latitudes, gives the Diftance, ac» 
cording to the Rhumb-line 1364 Leagues, but according to 
the Arch of a great Circle, no more than 1187 Leagues ; fo 
that inftead of invalidating what I have there laid down, it 
does absolutely confirm it, as far as the Authority of one 
fingle Ship’s Journals can do it. 
E ex 
