V. ELECTRICITY, ETC.--Electro Mania. By W. MATTIEU
WILLIAMS.--Example of electrical exaggeration and
delusion.--Early scientific attempts at electro-motors,
electric lamps, etc.

Action of Magnets Upon the Voltaic Arc. By TH. DU
MONCEL. 2 figures.

Volckmar's Secondary Batteries.

* * * * *




METAMORPHOSIS OF THE DEER'S ANTLERS.


Every year in March the deer loses its antlers, and fresh ones
immediately begin to grow, which exceed in size those that have just
been lost. Few persons probably have been able to watch and observe the
habits of the animal after it has lost its antlers. It will, therefore,
be of interest to examine the accompanying drawings, by Mr. L. Beckmann,
one of them showing a deer while shedding its antlers, and the other
as the animal appears after losing them. In the first illustration the
animal has just lost one of its antlers, and fright and pain cause it
to throw its head upward and become disturbed and uneasy. The remaining
antler draws down one side of the head and is very inconvenient for the
animal. The remaining antler becomes soon detached from its base,
and the deer turns--as if ashamed of having lost its ornament and