ELECTRICITY.--Electrical Alarm for Pharmacists.--An apparatus
for indicating to the pharmacist when he removes from the
shelf a bottle containing poison.--2 illustrations. 9753
Electric Steel Railways.--By GEORGE W. MANSFIELD.--A full
discussion of the problem of electric railways; comparison
with horse and cable traction. 9752
IV. ENGINEERING.--Improved Oscillating Hydraulic Motor.--A
small motor for household use, as for driving sewing machines
and other domestic machinery.--8 illustrations. 9751
The Ceara Harbor Works.--A remarkable engineering work now
in progress in Brazil; the formation of an artificial
harbor.--4 illustrations. 9752
V. GEOLOGY.--Notes of a Recent Visit to Some of the
Petroleum-Producing Territories of the United States and
Canada.--By BOVERTON REDWOOD, F.I.C., F.C.S.--The second
portion of this valuable paper, treating more particularly
of Canadian petroleum.
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