a eT, 
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Mineralogy and Geology. 419 
no geologist can doubt for a moment. It follows from this view of the 
case, that the occurrence of extensive “diggings” in Nova Scotia is a 
; been prac- 
tically recognized from the outset, as comparatively few efforts have been 
sands exist in remunerative abundance. ) 
which can be drained, will probably furnish considerable deposits of allu- 
vial gold; and the same is true, no doubt, of certain river estuaries an 
J. W. Dawson, LL. D., F.R.S., F.G. 
(Condensed from the Canadian Naturalist.) —The following list includes 
Geological Society, and by Mr. R. Brown and the author, in the list ap- 
pended to “ Acadian Geology.” i 
. The present synopsis was prepared not so much for immediate publica- 
tion, as in aid of the writer’s investigations of the characteristic plants in 
the numerous coal Leds at the South Joggins, and of the conditions of 
formation of those beds : but as some time may elapse before the publi- 
tation of these researches, and the want of a list of the known species 1s 
much felt by those engaged in the study of the Carboniferous rocks, it has 
been thought advisable to print it in the present form, ; 
he new species have been described in the Canadian Naturalist and 
Geologist, for Dec. 1863, with mention of their collectors and _ localities, 
The part of the Carboniferous system in which the species occur has, how- 
ever, been stated ; and as some confusion has lately arisen from the use of 
the term « Subcarboniferous,” by authors, it is proper to state that the 
‘ Lower coal formation” in this paper is equivalent to “ Subcarbon- 
: flora. } 
the in subordination to these main divisions, will be fully detailed in 
e ; o  #ye : 
tem groups are indicated in the following pages by the initials L.0., M. C. 
