I. ARCHITECTURE.--Notes on the Construction of a Distillery
Chimney--A new method of building lofty shafts, including a
metallic frame and brick lining--3 illustrations. 9949
The Commercial Exchange, Paris--The new Paris exchange now
in process of erection.--Present state of operations--1
illustration. 9954
II. ASTRONOMY.--The Yale College Measurement of the Pleiades.--
Dr. Elkin's work with the Repsold heliometer at Yale College. 9957
III. CHEMISTRY--New Method for the Quantitative Determination
of Starch.--By A.N. ASBOTH--Determination of starch by its
barium compound. 9956
Synthesis of the Alkaloids--A retrospect of the field of
work so far traveled over by synthetical chemists, and
future prospects. 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.H.
HUDSON.--The conclusion of the account of this great
engineering feat, with tables of statistics and data--16
illustrations. 9946
Your Future Problems--By CHAS. E. EMERY--An address to
the graduating class of the Stevens Institute, N.J.--A
practical view of the engineering profession. 9943
VI. MISCELLANEOUS--A Group of Hampshire Downs--A typical
breed of sheep, their qualities and habits.--1 illustration. 9957
VII. NAVAL ENGINEERING--The Spanish Cruiser Reina Regente--A
further description of this celebrated vessel--4
illustrations. 9948
Torpedo Boats for Spain--The Azor and Halcon, two Yarrow
torpedo boats, described and illustrated--7 illustrations. 9947
VIII. PHOTOGRAPHY--How Different Tones in Gelatino-chloride Prints
may be Varied by Developers.--Twenty different formulæ for
the above purpose. 9949
Film Negatives--Eastman stripping films, their manipulation
and development. 9949
IX. SANITATION--French Disinfecting Apparatus--A portable
apparatus for disinfecting clothes and similar objects--1
illustration. 9952
X. TECHNOLOGY.--The Manufacture of Cocaine--The extraction
of cocaine with alkali and petroleum, with statement of
percentage yielded by various leaves. 9954
The Production of Oxygen by Brin's Process--The commercial
manufacture of oxygen by means of baryta--3 illustrations. 9950
#Transcriber's Note: Following entry not in original table of contents#
Deep Sea Dredgings: Examination Of Sea Bottoms. By THOMAS 9958
T.P. BRUCE WARREN.
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