oat R. Brown on the supposed absence, ete. 
Sound, we had a dangerous reminder of the fact, having lost 
the keel of our schooner, on one of the great boulders which 
equally dangerous on that account. Here they present them- 
selves disagreeably to the seaman’ 
less visible on account of the dense vegetation concealing them, 
yet to one accustomed to search for such things, traveled blocks 
and ice groovings are sufficiently abundant. Boulder clay is 
also not wanting to complete the tale of the glacial period in 
Northwest America. 
All throughout this paper I have sedulously avoided touch- 
ing upon the modern local glaciers which are found scattered 
all throughout the northern portion of the Cascade and Coast 
Ranges of Mountains, in some places (as in some of the north- 
ern inlets on the coast of British Columbia) approaching to 
within a short distance of the sea; and in the southern part of 
the latter range they are found in most of the high mountains, 
such as Mt. Baker, Diamond Peak, etc. In another place, “On 
the formation of Fjords, etc.”* I have shown that in all likelihood 
these British Columbian inlets were at one time the site of gla- 
ciers, and though the marks of local glaciers are evident here and 
there where none are now found, yet the appearances described 
are due to a totally different set of causes from these, or any now 
in existence on the American continent, unless indeed Green- 
land be included under that geographical division. These local 
glaciers in the limits assigned to a paper of this nature do not 
therefore require to be further ‘naked upon. 
Am I therefore in error, when I think that the case I have 
submitted, makes good the thesis with which I commenced 
these remarks, viz:—that whatever may be said of California 
and Alaska (and Messrs. Whitney and Dall are quite capable 
of holding their own in reference to their assertions about these 
no mean eminence, an t 
less capable to build thereon theories, where no theories ought 
4 Gladstone Terrace, Hope Park, Edinburgh, June 23d, 1870. 
* Journal of the Royal Geographical Society, vol xxxix. 
+ Foster in “ Mississippi Valley,” p. 338, and A. Geikie in “ Nature,” vol. i, p. 436. 
