22 THE AMERICAN MUSEUM JOURNAL 
library of the Museum and that of the Entomological Society are avail- 
able for convenient reference. 
The space in the exhibition cases formeriy occupied by the collection 
| \ : 
of local insects is being filled with exhibits aiming to show both the 
practical and theoretical sides of entomology, particular emphasis 
being laid upon insect ecology, or relation to the factors of environment. 
gs } gS) 
RECENT ACCESSIONS TO THE DEPARTMENT OF GEOLOGY 
HE Department of Geoiogy is fortunate in having received recently 
as a gift from the Delaware, Lackawana and Western Coal 
Company, through its president, Mr. E. E. Loomis, a fossilized 
tree stump from the Diamond vein of one of the anthracite coal mines 
under the city of Scranton, Pennsylvania. ‘The thickness of the coal 
in this vein was eight feet and its top was seventy feet below the surface 
of the ground. ‘The vein was exhausted here thirty-five years ago and 
no mining has been done since. Recentiy one of the mine officials 
was examining these old workings and on top of the refuse on the floor 
of the galiery discovered the fossilized stump of a tree in perfect condi- 
tion. ‘The trunk was probabiy more than two feet in diameter and the 
spread of the remains of the roots is more than ten feet across. ‘he 
stump evidentiy dropped from the roof some years after mining had 
been finished, and the specimen was apparently unnoticed when active 
operations were in progress, since the bottom of the fossil conformed to 
the roof line of the workings. ‘The cavity from which the stump dropped 
shows that the trunk of the tree stood in a vertical position. 
Through the generosity of Dr. Charles E. Slocum of Defiance, Ohio, 
a Life Member of the Museum, and with the codperation of the Kelley 
Island Lime and ‘Transport Company, we have been able to extract 
from the quarries at Kelley’s Island, Ohio, and transport to the Museum 
a splendid block about 8 x 10 feet in size representing the glacial grooves 
for which the Island is famous. Several deep grooves traverse the block, 
the principal one of which is about 12 inches deep. The higher parts 
of the surface show glacial scratches at an angle to the deep grooves, indi- 
cating a change of direction of movement in the ice during the latter part 
of its history or the work of a glacier advancing from a different center. 
Portions of the surface are polished almost as highly as they would be 
if the work had been done by hand. 
