22 
The monkeys of the New World range from about fifteen 
degrees north to forty degrees south latitude; the most north* 
ern point which they reach in the eastern hemisphere being 
in Tunis, about thirty-eight degrees north latitude. 
A very considerable group of animals of curious organiza¬ 
tion, many of whose forms are closely allied to the monkey, 
while others reach off towards the lower types of animals, is 
known as the Lejnuridce —Lemurs or Half-apes. They are all 
nocturnal, live in trees, and feed on fruits, insects, small birds, 
and quadrupeds. They are found in south-eastern Asia, the 
southern part of Africa, and the island of Madagascar, which 
contains a large proportion of the whole number of species. 
The specimen in the collection—the Grand Galago (Galago 
crassicaudata ) is from Mozambique. 
Leaving the Monkey House, the visitor passes the old man¬ 
sion, “Solitude,” erected in 1785 by John Penn, a descend¬ 
ant of the founder of the Commonwealth, and now occupied 
by the offices of the Society—and descending a flight of steps 
turns to the left by 
No. 4 —THE BEAVER POND. 
The identity of the Beaver of North America with that of 
Europe has been for many years a subject of discussion among 
naturalists, and by many their specific distinction is considered 
as assured. Recent researches, however, embracing the com¬ 
parison of a large number of skulls, place beyond dispute the 
fact that the cranial characters, which were taken to warrant 
the separation of the two forms, are subject to so great an 
amount of variation in different individuals that they can not 
be considered as binding. It seems proper, therefore, that 
the American form should be looked on merely as a variety of 
that from the Old World. 
The American Beaver {Castorfiber canadensis') has been 
so valuable in times past to commerce, that a, considerable 
amount of interest has been felt in the organization of their 
villages, which is said to manifest a degree of system al¬ 
most beyond anything else to be found among the lower 
animals* 
The Beaver Pond at the Garden affords, perhaps, as good 
