II. CHEMISTRY.--The Application of Electrolysis to Quantitative
Analysis.--By CHARLES A. KOHN, B.Sc., Ph.D.--Applicability of
these methods to poison determinations.
III. CIVIL ENGINEERING.--The Kioto-Fu Canal in Japan.--A
Japanese canal connecting the interior of the country with the
sea.--3 illustrations.
The Iron Gates of the Danube.--An important engineering work,
opening a channel in the Danube.--1 illustration.
The New German Ship Canal.--Connection of the Baltic with
the North Sea.--Completion of this work.--1 illustration.
Transit in London, Rapid and Otherwise.--By JAMES A. TILDEN.
--A practical review of London underground railroads and their
defects and peculiarities.
IV. ELECTRICITY.--An Electrostatic Safety Device.--Apparatus
for grounding a circuit of too high potential.--1 illustration.
Experiments with High Tension Alternating Currents.--Sparking
distance of arc formed by a potential difference of 20,000 volts.
--1 illustration.
Laying a Military Field Telegraph Line,--Recent field trials in
laying telegraph line in England.--3 illustrations.
Some Experiments on the Electric Discharge in Vacuum Tubes.
--By Prof. J.J. THOMSON, M.A., F.R.S.--Interesting experiments
described and illustrated.--4 illustrations.
The Electrical Manufacture of Phosphorus.--Note upon a new
English works for this industry.
V. GEOGRAPHY.--The Mississippi River.--By JACQUES W. REDWAY.
--An interesting paper on the great river and its work and
history.
VI. MECHANICAL ENGINEERING.--How to Find the Crack.--
Note on a point in foundry work.
Riveted Joints in Boiler Shells.--By WILLIAM BARNET LE
VAN.--Continuation of this practical and important paper.
--10 illustrations.
VII. MEDICINE AND HYGIENE.--Influence of Repose on the Retina.
--Important researches on the physiology of the eye.
The Relation of Bacteria to Practical Surgery.--By JOHN B.
ROBERTS, A.M., M.D.--A full review from the surgeon's standpoint
of this subject, with valuable directions for practitioners.
VIII. MINERALOGY.--Precious and Ornamental Stones and Diamond
Cutting.--By GEORGE FREDERICK KUNZ.--An abstract
from a recent census bulletin, giving interesting data.
IX. MINING ENGINEERING.--Mine Timbering.--The square system
of mine timbering as used in this country in the Pacific coast
mines and now introduced into Australia.--1 illustration.
X. MISCELLANEOUS.--Freezing Mixtures.--A list of useful freezing
mixtures.
Sun Dials.--Two interesting forms of sun dials described.
--3 illustrations.
The Undying Germ Plasm and the Immortal Soul.--By DR. R.
VON LENDENFELD.--A curious example of modern speculative
thought.
XI. NAVAL ENGINEERING.-The New British Battle Ship Empress
of India.--A first class battle ship recently launched at
Pembroke dockyard.
XII. TECHNOLOGY.--Composition of Wheat Grain and its Products
in the Mill.--A scientific examination of the composition of
wheat and its effect on mill products.
Fast and Fugitive Dyes.--By Prof. J.J. HAMMEL.--Practical
notes from the dyer's standpoint upon coloring agents.
* * * * *