Prof. Eaton’s Geological Survey. 355 
his attention to the probable occurrence of rolled stones, 
mud, &c. supported or invested, together with the bones, by 
a layer of stalagmite—no mention is made in his letter of 
such appearances. 
I intend to offer youa paper on the Geography and Geolo- 
gy of the Lake of the Woods, but I cannot now say when it 
will be ready, as that partly depends on a map at present 
unfinished. The matter would be novel and interesting, 
including the calcareous formation north of the valley of 
the St. Lawrence. 
Arr. XXIII —WNotice of Prof. Eaton’s Geological Survey 
of the District adjoining the Erie Canal. 
Mr. Jerrrey, the principal conductor of the Edinburgh 
Review, has obtained the opinion of Professor Buckland, the 
celebrated author of the Reliquie Diluviane, on the above 
work of Professor Eaton. In a letter to the Hon. S. Van 
Rensselaer, Mr. Jeffrey has given the result. Mr. Buckland 
says, that the “ author seems both to understand his subject, and 
to have done his work carefully.”” The work contains indeed 
abundant evidence of extensive and patient examination. 
This point will not be affected by the adoption or rejection of 
Mr. Eaton’s peculiar views by our geologists. In some parts 
there is an evident improvement upon some of his previous 
publications on the geology of our country. Thus at page 
31, and page 62, and onwards, we find introduced * Primi- 
tive Argillite,” a rock so clearly separated, and so easily dis- 
tinguished in our country from “ Transition Argillite,” though 
both are united under the latter name by Bakewell and some 
others. 
Mr. Buckland makes some objection to the style, and com- 
lains of Mr. Eaton for “affecting some needless novelties 
in technical language” However true this charge may be, 
the censure is feeble when compared with the commendation 
contained in the previous quotation. In our country, the 
work bas been censured for this fault, and more particularly 
