124 DR ROBERT MUNRO ON 
where in this memoir, are also unique. The Omori deposits 
are not only peculiar for what they possess, but for what. 
they do not possess.” 
The following is a list of the objects thus far found at 
Omori :— 
Earthen.—Cooking and hand vessels; ornamental jars, 
a bead, and tablets; spindle-whorl (?), and a disk, shaped 
from a fragment of pottery. 
Stone.—Hammers, celts, rollers, skin-dresser (?). 
Horn.—Awls, a handle, prongs of deers’ antlers, and other 
implements, use unknown. 
Bones.—Fish-spine needles; bird bone with two holes 
in side; cube from metatarsal of deer; os calcis of deer, 
probably used as a handle. 
Objects not found at Omort.—F lint and obsidian imple- 
ments; mortars and pestles; drilling-stones and net-sinkers.; 
pipes, worked shells, wampum, stone beads. 
In America, where the inhabitants may be said to have 
lived in the Stone Age up to the time of its discovery by 
Columbus, some of the shell-mounds may be comparatively 
modern. Mr E. R. Reynolds, in his account of the pre- 
Columbian shell-mound at Newburg, Maryland (Congres 
international des Américanistes, 1884, p. 292), gives the 
following description of the Clifton shell-mound on the 
Potomac :— 
“ The deposit of shells is found upon a bank twenty-five 
feet high which faces the creek on the south, and extends 
northwards parallel with the Potomac. The southern 
portion of the mound contains the greatest quantity of 
shells; from thence it diminishes in depth, until it is 
finally merged into a shell-field a quarter of a mile away. 
The eastern side is bounded by a long, deep ravine which 
drains into the creek. The mound itself covers many acres 
of ground, and, overlying the shells, is a stratum of earth 
which varies from one to three feet in depth. 
“From the best information that I have been able to 
obtain, it appears that the soil resting on this mound has 
been under cultivation since about 1730, prior to which date 
it was thickly covered with a portion of the primeval forest, 
the remnant of which still bounds it east of the ravine. 
