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POPULAR SCIENCE REVIEW 
of the Ephemeridse, and gives it the name of Haplophlebium Barnesii in 
compliment to its discoverer. It must have belonged to an insect measuring 
at least seven inches across the wing. Commenting on the conditions under 
which it lived, Dr. Dawson says : u When we consider that the larvae of such 
creatures inhabit the water, and delight in muddy bottoms rich in vegetable 
matter, we can easily understand that the swamps and creeks of Carbonife- 
rous Acadia, with its probable mild and equable climate, must have been 
especially favourable to such creatures ; and we can imagine the larvae of these 
gigantic Ephemeras swarming on the deep black mud of the ponds in 
these swamps, and furnishing a great part of the food of the fishes inhabit- 
ing them ; while the perfect insects, emerging from the waters to enjoy 
their brief space of aerial life, would flit in millions over the quiet pools 
and through the dense thickets of the coal-swamps.” — Vide Geological Maga- 
zine, September. 
Zone of Ammonites Transversarius. — A paper on this subject, by the late 
Dr. Oppel, has been communicated to the Imperial Geological Institute of 
Vienna. This zone of the Tipper Jurassic series is limited above by the zone of 
Terebratula impressa. It may be traced from South-west Poland, through 
the Carpathians, Moravia, Bavaria, the Schwiibische Alps, the Swiss Jura, 
the Alps, France, and Spain, as far as Algeria. The number of fossil species 
known to occur in it amount to 217 ; among them are microscopic remains 
of Crustacea and Radiata, and many new species af Foraminifera. 
Hungarian Fossil Mammals . — Herr Hantken records the discovery of the 
following remains from the Post-pliocene deposits of Fiinfkinchen: — Ur sics 
spelceus , many fragments of lower jaws, loose teeth, and vertebrae ; Hycena 
spelcea , Goldf., a fragment of a jaw belonging to a young animal, with the 
first teeth and protruding canines ; Fquus fossilis , Cuv., a fragment of a 
lower jaw with a tooth ; JBos priscus, Boj., a second collar vertebra; Rhino- 
ceros tichorhinus , Cuv., a single tooth. 
The /Sulphur Springs of Formosa . — At the last meeting of the Geological 
Society, Mr. C. Collingwood, M.B., presented a paper on the sulphur-springs 
of Northern Formosa. These springs are situated amongst the hills near 
Tamsuy, in the north-eastern corner of the island of Formosa, and indicate 
the existence of volcanic action near the surface of the region — a phenomenon 
otherwise afforded by the frequent occurrence there of earthquakes. One 
spring possessed the character of a mountain-torrent, and had a temperature 
of about 130°. The spot containing most of the springs occupies about two 
acres of ground, is quite barren of vegetation, and is covered with low 
hillocks of friable rocks and debris, interspersed with shallow pits containing 
mud, sand, and sometimes water. From cracks and fissures in these depres- 
sions arose clouds of steam ; and around them was strewn a quantity of 
sublimated sulphur, the yellow colour of which was visible from a distance. 
Shells in the Ruins of Pompeii. — Among the objects to be seen at the Museo 
Borbonico at Naples, is a collection of shells taken from some of the ruined 
houses of Pompeii. These shells have been carefully examined by Mr. R. 
Damon, who states that they are all those of recent species. He further 
remarks that some of them are shells only found in Eastern seas, the Indian 
Ocean, &c. Hence he thinks it not unlikely that they formed part of a 
Pompeian Museum, and he asks, u Did the original proprietor form one of a 
