PLATE 7 



Map of Cape Cod, Mass., showing an old cross-channel south of Eastham. 



Reproduced from a copy of part of " A portion of a Map of New England in The Public Record 

 Office, London, England. Copied for Charles Hervey Townshend, Esq. of ' Raynham,' New Haven, 

 Conn., U. S. A., by L. M. Byrne, April, 1887," as published in U. S. Coast and Geodetic Survey Report 

 for 1890, Plate 71. 



" Captain Townshend is of opinion from evidence afforded by the chart itself, and by the copious 

 notes it contains relative to the coasts, shoals, and passages embraced within its limits, that it was con- 

 structed by a hydrographical survey party, composed of British naval officers, between the years 1715 

 and 1720. There are, however, some indications that parts of it had an origin from 20 to 30 years earlier." 



The officer referred to in the note, opposite the old passage way through Cape Cod, " was probably 

 Captain Cyprian Southack, a Boston pilot, who commanded a ship in the expedition against Quebec, 

 1690." 



Drafting and editing supervised by the United States Geological Survey. 



