The Editor of the SCIENTIFIC AMERICAN acknowledges, with much
pleasure, the receipt of original papers and contributions upon the
following subjects:
On a Battery and Electric Clock. By J. E. W.
On Anti-Water Drinking. By C. P. W.
On Snakes Catching Fish. By C. R. G.
On Utilization of Sewage. By Dr. H. D. T.
On Aerial Navigation. By C. W.
On the Ash-Colored Salamander. By C. F. S.
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