440 Dawson—New Carboniferous Batrachians of Nova Scotia. 
Art. XLVIII.—On a Recent Discovery of Carboniferous. Batra- 
chians in Nova Scotia ; by J. W. Dawson, LL.D., F.RS. 
1. General Remarks. 
which the smaller batrachians, prowling for prey among the 
undergrowth of the coal forest, fell and were unable to extrl- 
cate themselves. In this way the successive layers of deposit 
became stored with skeletons of batrachians which they have 
retained in an admirable state of preservation. 
Only one sandstone at the Joggins is known to contain these 
reptiliferous trees, though erect Sigillarize are known at more 
than sixty different levels, and many of these erect stumps 
have been broken up in the hope of making such discovenss 
In the past summer, however, shells of Pupa vetusta were foun 
by Mr. Albert J. Hill and the writer in an erect tree 10 sare 
XXVI of Division 4, about 800 feet higher in the series; si 
of course where these shells occur remains of other lam 
of group 15, I have several times visited the locality, 
endeavored to take advantage of the exposure of new aot 
by the encroachments of the sea. In the summer of 180 of 
took second stump which afforded nine skeletam et 
four species, as well as remains of Millepedes and she ided 
Pupa. In 1860, I dissected two other stumps, which yie > 
six additional skeletons including two new specles: DB 
whole six batrachian species were more or less perfect! 
Millepedes, 
t 
y re - a 
is 
Seudder to made a careful study of the pee 
ae 
Eee Bras 
