272 ROYAL SOCIETY OF CANADA 
Southack is another question, the solution or non-solution of which 
does not affect the main point here involved, that the mouth of the 
St. Croix on Mitchell’s map is the Letete Passage with the Inner Bay 
omitted. We are not, however, without light upon this latter question, 
to solve which we naturally ask what charts were probably used by 

Map No. 26. Blackmore, 1713. From original; x ? 
Southack himself in preparing his large chart of 1733 (Map No. 23) 
for publication. Here we can speak with some certainty. In 1713 
a survey of the Bay of Fundy was made by Blackmore, whose chart 
has been reproduced in the preceding Monograph on Cartography 
(366), and the Passamaquoddy portion of which is herewith repro- 
duced. His survey was carefully made from Cape Mispeck to Point 
Lepreau, and thence extended to the Wolves and Grand Manan, but 

the boundary MS. showing that he or any of the others connected with the 
Commission doubted the current interpretation of Mitchell’s map is the follow- 
ing passage in a Memorial presented by the American Agent at Providence, 
Oct. 18, 1798, practically after the close of the whole discussion :— 
‘The undersigned Agent for the United States has the honour to suggest 
that a few days before the last adjournment, the Agent for his said Majesty, 
urged in his argument that a river marked on the map of John Mitchell 
(which was the main guide in the treaty of peace between the above-men- 
tioned powers as to the boundaries agreed on) by the name of Passamaquoddy 
was in fact a stream issuing into the Bay of Cobscook, and that the other 
river therein marked with the name of Saint Croix is in fact the Scoodiac— 
that the argument was new in the controversy . . . .” 
