Miiheh cds" 1° Sythe) Saini ae i Say ge he Tae eR ae Wise ey ae 
ee en a Boe =) 4 sam ee i 
Peery § ; 3 : 
Tee : 
420 Scientific Intelligence. 
quartz rock the next younger and the limestone the most recent of the 
th 
ree, | 
We have noticed particularly the above three formations because the 
correct determination of their agé must be made a starting point for fu- 
ture investigations in the large azoic tract lying east of the Green Moun- 
tains. In this latter region there is a narrow belt of Devonian limestone 
about one mile in width and 20 or 30 in length. All the’ rest appears to 
; the 
the 8th contains two local 
the colors are numbered to correspond with the numbers of the geolog: | 
ical column. It is to be hoped that some such method as this last ¥! | 
2. On the date of the recently published Report of the Superintend of 
of the Geological Survey of Wisconsin, exhibiting the Progress of 
work Jan. 1, 1861. Madison, Wis, : E. A. Calkins & Co., State Printers, 
ee’ 8vo. By E. Buines.—This Report contains descriptions 
about 60 species of 
, Superintendent of the Survey. copy of it ‘ot re- 
Prof. Dana by Mr. Hall, I understand, Dec. 27, 1861, but it was ‘March 
ceived at the office of the Geological Survey of Canada until of 
12th. Dr. Dawson noticed the first sheet in the December nuh, | 
Canadian Naturalist, which was published on the Ist day of Fe?» 
