EDITORIAL. 223 



in a section taken near Swanton as follows : 



White and red dolomites with sandy layers (In 



part Winooski marble) 370 feet. 



Gray argillaceous limestone with sea weeds no " 



Buff sandy dolomite weathering brown 40 



Dark gray and bluish black slate with thin 



bands of dolomite 130 



Other measures, dolomites, sandstones, and 



limestones 60 



a 



Total thickness of section 710 feet. 



The above section gives a very good idea of the most 

 prominent members of the Red Sandrock formation. 

 The wliole thickness of the formation is over 3,000 feet. 

 The mottled dolomite, whose more compact beds are the 

 Winooski marble, does not occur, so far as I am aware, 

 farther south than Mallet's Bay six miles north of Bur- 

 lington. South of this point it becomes sandrock, though 

 not always red but it loses its mottled character and is 

 nearly of a uniform shade from dark red to reddish dove 

 color. Its chemical composition varies considerably. 

 The dolomite portion contains lime and magnesia in the 

 form of carbonates and in about equal proportions, silica 

 to the amount of from 10 to 20 per cent, and alumina 

 and iron together in about the same amount. 



Editorial. — We tender our thanks to the citizens of 

 the City of Burlington, for so generously subscrib- 

 ing for the First Series of this Journal, and thus en- 

 abling us to proceed with its publication. It is our aim 

 after the publication of the Flowering Plants of the State 

 by Prof. Perkins and the Flowerless Plants by Mr. Frost, 

 to devote the Journal to more popular matter on scientific 

 subjects ; in the mean time, however, we shall give one or 



