450 Miscellaneous. 
lets go until forced to do so. I placed a sand lizard within its 
reach, which it instantly seized, and retained its hold for upwards of 
two hours, although for more than half that time it was suspended 
from it. 
Before concluding, permit me to mention that the following rep- 
tiles have been found by me near Liverpool since August last: Zoo- 
toca vivipara, Lacerta agilis, Natrix torquata, Vipera communis, Tri- 
ton palustris, T’. aquaticus, T. vulgaris, Rana temporaria, Bufo vul- 
garis. I remain, yours very respectfully, 
W. WELLS. 
New species of Fossil Bats. By M. H. pz Meyer. 
Cheiroptera have but rarely been found fossil in the tertiary for- 
mations. Of this family, in the deposits anterior to the diluvian 
epoch, only the Vespertilio parisiensis of the schists of Montmartre 
was known, a single individual of which is preserved in the Museum 
of Paris; and two small teeth found in the eocene sand of Kyson, 
and referred with doubt by Prof. Owen to the genus Vespertilio. ‘The 
species indicated by Karg, at Gfningen, appears to be very uncertain, 
and the original specimen has not been discovered again. Hermann 
de Meyer has detected at Weisenau, amongst a considerable mass of 
fragments of bones, some belonging to two Cheiroptera. ‘They con- 
sist of one half of the right lower jaw, in which, although the teeth 
are wanting, the alveoli are sufficiently well preserved to give an 
idea of the dental system ; of three humeri, of which two are left and 
one right, which show the existence of two species, and prove even 
probably a generic difference between them; lastly, of one half of a 
radius which likewise can only belong to a Cheiroptera. ‘These two 
species differ from that of Montmartre, and H, de Meyer has desig- 
nated them under the name of Vespertilio precow and V. insignis, until 
their generic affinities are definitely fixed.—Leonhard und Bronn’s 
Jahrbuch, 1845, p, 798. 
Does Magnetism influence the Circulation in Chara? 
By M. Durrocuer. 
In some experiments made in the year 1837, M. Dutrochet proved 
that electric currents only affect the circulation of Chara by their 
action as exciting causes. ‘The movement of the fluid is only arrested 
for a few minutes and then recommences, often with greater rapidity 
than before, as the equilibrium between the electric and vital forces 
is restored. ‘This action is exactly analogous to that of hot water 
or solution of common salt. 
M. Dutrochet has recently submitted Chara to the influence of a 
large electro-magnet, capable of supporting a weight of about 4000 
pounds. The stem of Chara was placed a little in front of a plane 
passing vertically through the poles of the horse-shoe magnet, but 
quite within the magnetic influence. Careful observation at the 
moment of establishing the electric current in the coil, proved that 
the speed of the circulation was unaltered. Left thus for ten mi- 
nutes, all remained as before—no influence was manifested. ‘The 
Sy ae 
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