79 
Among the true Squirrels {Sciuridd) of North America, 
those generally to be found in the collection are the South- 
ern Fox Squirrel (Sciurus vulpinus), of the Gulf States; the 
Cat Squirrel {Sciurus cinereus'), from New Jersey to Vir- 
ginia ; the Gray Squirrel {Sciurus carolinensis') , United 
States east of the Missouri river, and the Red Squirrel 
{Sciurus hudsonius'), which ranges from British America to 
the Gulf States. 
The Gray Squirrel is subject to much variation, the Black 
as well as the White Squirrel belonging to this species. 
No. 23.— THE PHOTOGRAPH STAND 
Will be passed on the right of the walk on the way out, close 
by the Monkey House. Photographs of many of the animals 
in the collection can be purchased here at very moderate 
prices. 
No. 24.— THE SUN-DIAL 
Points out the time of day at Philadelphia and at numerous 
other points on the earth’s surface. 
