268 ROYAL SOCIETY OF CANADA 
American volume of the English Pilot and elsewhere was the natural 
source of information for Mitchell. That he used it and took the 
Passamaquoddy region from it is plain when the Passamaquoddy part 
of the Southack Chart, reproduced herewith (Map No. 23) is com- 
pared with the same region on Mitchell.1 The resemblance (allowing 
for the difference of scale) amounts to identity, the more especially as 
St.Croix 
River 
Green 
a Tsland6o 
itants ake /60 
Great [Sland of 
Fassamaqueddy 7279 00 & 
Point 
5 © la Pree 
710 50 + Fate 2 
“Islands 
Te of 
45 Passa ma quoddy 

Map No. 23 Southack, 1733. From tracing of original; x #. 
no other known map of the time shows anything like a similar topo- 
graphy from which Mitchell could have copied this part of his map. 
Our present question then resolves itself into this, what is the identity 
of the St. Croix River on Southack? It appears to have been assumed 
by everyone who has written on this subject from the Agents in 1796 

1 This was well known to Sullivan, the American agent, for in one place 
in his arguments he says, ‘‘ The map of Mitchell was a collection from maps 
then in being, and not from actual surveys. No doubt he depended much 
upon Cap. Southack.” 
