NATURAL HISTORY AND PHYSIOGRAPHY OF NEW BRUNSWICK. 343 
unfortunately the data are not enough to allow new boundaries 
to be established with any certainty. A comparison of the accom- 
panying with the published geological maps, both upon one scale, 
will not only show how much re-arrangement will be necessary, 
but incidentally will illustrate how greatly our knowledge of the 
topography of that region has advanced since the geological 
maps were published. Probably the granites and schists will be 
found to be intermingled in a very complicated manner. The 
granites are undoubtedly, as our geologists agree, intrusive, and 
the schists are the result of the action of the granites upon the 
sedimentary rocks into which they were intruded. 
The original data for the location of the boundaries on the 
geological map may be found in the reports of Hind and of Ells, 
the only professional geologists who have been within this area,* 
while the additional data for the accompanying map are in the pre- 
ceding notes of this series at the pages noted below. Hind, in 1864, 
crossed from Long Lake to Big Lake, visited its outlet and re- 
turned to Long Lake. Ells, in 1880, ascended the Little South- 
west Miramichi to about the mouth of the Walkemik or Upper 
North Branch (as he tells me in a letter) and returned by the 
same route. 
Granites. On the Little Southwest, near Indian Brook, by Ells, in 1880 
(Report, 1879-80, D, 34). I have myself seen these ledges which 
contain inclusions of schist. Near Mclnnes Lake and at Wigwam 
Pond in Note 63, page 67. On Milnagek Lake, Note 56, page 470. 
Above Senda Lake, below Gover Lake, and on lower course of Wal- 
kemik, in Note 87, page 341. On Renous, Note 85, page 316. 
Schists. At the outlet of Tuadook Lake by Hind in 1864 (Report, 1865, 
page 153). On Upper Graham Plains, Note 64, page 75. Northeast 
of the Crooked Dead water, Note 55, page 465. On the Renous 
Lake and River, Note 85, page 314, 316. On stream near Crooked 
Deadwater, Note 86, page 326. On branch of Patchel Brook and 
lower course of Walkemik Branch, Note 87, page 341. 
My note on Patchel Brook (Note 64, pages 73, 75) speaks of both felsites 
and granites forming the walls of the gorge of that stream, but I 
am uncertain as to their extent and mutual relations. 
* Edward Jack, an amateur geologist, was in this vicinity in 1873, and, ap- 
parently, earlier, and made some observations, finding, however, no ledges within 
the area of our map. Charles Robb concluded erroneously from from Mr. Jack’s- 
notes that all this area was occupied by granite. (Report of the Geological 
Survey, 1870-72, page 251). 
