SCIENTIFIC SUMMAIIT. 
321 
Each of these mountains occupies a point of the' bay of Fonseca. The 
eruption began on February 23 last, at seven in the morning. It was pre- 
ceded by several earthquake shocks, which began on the 11th, and were so 
frequent on the 16th that no less than 115 were counted. The eruption was 
still going on formidably when the courier started on March 21. — L' Institute 
June 3. 
The Stone Age . — At a recent meeting of the Royal Academy of Belgium, 
M. Ed. Dupont read a most interesting paper on this subject. He agrees 
with modern archaeologists, in thinking that the Stone Age must be 
divided into two sections : (1) The age of clipped flints ; and (2) the age 
of polished flints. 
The Thssi'l Fishes of Carinthia. — Herr Kner has published, in the Trans- 
actions of the Royal Academy of Vienna, a supplement to his memoir on this 
subject. His later researches have added no new species to the list already 
published by him, but have resulted in the discovery of some very perfectly 
preserved specimens, and, among others, fair examples of Semionotus striatus. 
In addition to these Herr Kner has discovered a saurian cranium, the flrst 
example of this type of life found in the Seefeld locality. Although this 
cranium has been considerably altered by the pressure to which it has been 
submitted, Herr Ehier has been able to conclude that it belonged to a species 
of crocodile with a prolonged snout, like that of the gavial. The characters 
of its teeth and eyes induce him to refer it to the genus Teleosaurus, 
and he considers it to be a species yet undescribed. Herr Sandbergen, 
of the University of Wiuzburg, has found, among the fishes found by 
Herr Kner at Raibl, what he regards as a new species of Ptycholepis, 
and, from the character of its scales, he has given it the specific name P. 
tenuisquammatus. 
The War-Paint of the Prehistoric Man . — In a memoir some time since pre- 
sented to the Royal Academy of Belgium, M. Ed. Dupont states that he 
had found, among specimens of ologiste from the banks of the Lesse, some 
which exhibited markings similar to those described by MM. Christy and 
Lartet, as found in specimens of red haematite, from the caverns of Perigord. 
M. Dupont concludes that the Troglodytes of the caverns of the Lesse 
ground down those minerals to obtain a reddish powder, which seems to be 
a favourite colour among all savages, and which, mixed with grease, was 
probably employed to paint their bodies, as the American Indians do now- 
adays. 
Man in the Miocene Per'iod . — At the meeting of the French Academy, on 
April 20, a sealed memoir by MM. Garrigou and Filhol was opened and 
read. The matter refers to a statement which we have already published, 
viz., that the existence of bones split longitudinally, in certain of the miocene 
deposits, proves the existence of man in that age of the world. 
A Volcanic Circle. — In a letter to M. Saint Claire Deville, M. Fouqu^ 
makes some observations which confirm the opinions of M. E. de Beaumont 
on the subject of volcanic areas. M. Fouque says, relative to the earth- 
quake shocks at Cephalonia and Methilin, that if we unite by an arc of a 
great circle the points of the island at which the shocks have been chiefly 
felt we obtain a curve which passes by Etna and Tenerifie, and this cuiwe 
will be found to pass through the plane known as the eruptive plane of 
