9956
The Chemical Basis of Plant Forms--By HELEN C. DE S. ABBOTT
--Continuation of this important contribution to plant
chemistry, one of the most valuable of recent chemical
monographs. 9955
IV. ELECTRICITY.--An Electrical Governor--A new apparatus for
preserving a constant electromotive force with varying
dynamo speed--1 illustration. 9952
Electric Launch--A French government launch with Krebs
electric motor. 9954
The electric current as a means of increasing the tractive
adhesion of railway motors and other rolling contacts.--By
ELIAS E. RIES--A full review of this important subject, with
accounts of its experimental examination. 9953
V. ENGINEERING--Benier's Hot Air Engine--A new caloric engine
very fully illustrated and described--8 illustrations. 9943
Heating Marine Boilers with Liquid Fuel--A simple apparatus
and recent experiments with the same.--3 illustrations. 9945
The Change of Gauge of Southern Railroads in 1886--By C.
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