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Scientific Intelligence. 
cellaria capensis) contain no air cells, but are compact, al- 
though these birds are found far at sea, and possess considerable 
power of wing. He further observed that they swaiii little, and 
dived seldom ; and their heart was not so triangular and de- 
pressed, as that of the Anas nigra, and other birds that dive 
often and continue long under the water. Kuhl has discovered 
the organs of generation of the ^rethusa {Physalia), and in 
parts which all authors have described as tentaculae ; and the 
same active naturalist has confirmed, by actual dissection, all 
that Cuvier had conjectured in regard to the structure of the 
Velella and Porpita. The Mammaria adspersa of Tilesius, 
Kuhl finds to be the ovum of an asterias, or some other sea 
animal. Kuhl found vast abundance of crabs of the Pagura 
tribe in the Indian Islands. These paguras live on the land 
and avoid the sea, as was observed by Bose of another species 
which lives in America : they abound not only on the heath, 
but also wander into the thickest woods, and, what is still more 
remarkable, climb the stems of the cocoa-nut tree and the arbo- 
rescent Rauwolfia, in search of the eggs and young of the sula. 
39 . Toad found alive in the Centre of a Stone. — A speci- 
men of a toad, which was taken alive from the centre of a mass 
of solid stone, has been sent to the College Museum of Edin- 
burgh by Lord Duncan. 
40. Discovery of Bones of the Megatherium. — The Batavian 
naturalists Spix and Martins, during their residence in Brazil, 
found in limestone caves bones of the Megatherium. 
41. Bones of the Mammoth. — Several of the large bones of 
the mammoth have been lately discovered in the province of 
Groningen, and deposited in the public museum. 
42. Bones cf Quadrupeds. — Another fissure or cave, contain- 
ing bones of quadrupeds, has been discovered in the limestone 
of Yorkshire. 
43. Cave near Sundwic/i.-~-A cave, near Sundwich in West- 
phalia, 1500 yards in extent, has been found to contain bones 
and skeletons of an unknown species of bear. 
