58 i NATURAL HISTORY MISCELLANY. 
author regards them all as eggs, and rejects the distinction into 
ova and pseudova. He seems inclined to adopt the notion that 
- the supposed cases of Parthenogenesis may be due, to self-fecun- 
dation. — The Academy. 
GEOLOGY. 
Cave MamMaAts IN Pennsytvanta.— Prof. Cope, at a recent 
meeting of the American Philosophical Society, announced the 
discovery by Charles M. Wheatley, of Phoenixville, Penn., of a 
cave in the auroral limestone of Chester Co., containing remains 
of Postpliocene Mammalia. The species so far recovered, are 
a tapir of large size, a small horse, a very large ruminant, and a 
mastodon (Trilophodon Ohioticus) ; also some very fine remains of 
a Megalonyx, and the remains of a large Mylodon, and the bones 
and teeth of a cave bear of large size; it is very distinct from the 
Cave Bear of Europe, or the living bears of the Northern Hemi- 
sphere ; it is the Ursuspristinus (Arctodus of Leidy). Remains 
of serpents, turtles and insects also occur. Prof. Cope stated 
that Mr. Wheatley was continuing the excavations, and that he 
would make a further communication of results at a future time. 
REMAINS OF THE Mammorn iy Evrore.—In addition to the 
celebrated skeleton of the Mammoth from Siberia which was found 
in such a remarkable state of preservation, the Museum at St. 
Petersburg contains a gallery entirely devoted to the remains of 
the Elephas primigenius, including probably many nearly entire 
skeletons. The most perfect skeleton out of St. Petersburg is 
probably one in the Museum at Brussels, found some time since 
and recently put together by M. Dupont, the present keeper of 
the Museum. An almost entire skull with tusks, was found some 
years since at Ilford in the Valley of the Thames, and is now in 
the British Museum. From the comparative height and slender- 
ness of the skeleton of the mammoth as compared with that of the 
existing elephant, it would appear to have been a more active and 
lighter-built animal. The excavation of the fortifications around 
Antwerp, has led to the discovery not only of elephants’ and mas- 
todons’ remains, but of a most wonderful series of cetacean 
bones. These are now arranged in a fine gallery in the Brussels 
Museum, which now bids fair to be one of the most attractive of 
continental institutions.— A. W. B. 
