I. BIOGRAPHY.--Dr. Morell Mackenzie.--Biographical note and
portrait of the great English laryngologist--the physician
of the Prussian Crown Prince.--1 illustration. 9794
II. BOTANY.--Soudan Coffee.--The _Parkia biglobosa_.--Its
properties and appearance, with analyses of its beans.--8
illustrations. 9797
Wisconsin Cranberry Culture.--The great cranberry crop of
Wisconsin.--The Indian pickers and details of the
cultivation. 9796
III. CHEMISTRY.--Analysis of Kola Nut.--A new article
adapted as a substitute for cocoa and chocolate to military
and other dietaries.--Its use by the French and German
governments. 9785
Carbonic Acid in the Air.--By THOMAS C. VAN NUYS and
BENJAMIN F. ADAMS, Jr.--The results of eighteen analyses of
air by Van Nuys apparatus. 9785
The Crimson Line of Phosphorescent Alumina.--Note on Prof.
Crooke's recent investigation of the anomalies of the oxide
of aluminum as regards its spectrum. 9784
IV. ELECTRICITY.--Electric Time.--By M. LITTMANN.--An
abstruse research into a natural electric standard of
time.--The results and necessary formulæ. 9793
New Method of Maintaining the Vibration of a
Pendulum.--Ingenious magneto-electric method of maintaining
the swinging of a pendulum. 9794
The Part that Electricity Plays in Crystallization.--C.
Decharme's investigations into this much debated
question.--The results of his work described.--3
illustrations. 9793
V. ENGINEERING.--A New Type of Railway Car.--A car with
lateral passageways, adapted for use in Africa--2
illustrations. 9792
Centrifugal Pumps at Mare Island Navy Yard, California.--By
H.R. CORNELIUS.--The great pumps for the Mare Island dry
docks.--Their capacity and practical working. 9792
Foundations of the Central Viaduct of Cleveland,
O.--Details of the foundations of this viaduct, probably
the largest of its kind ever constructed. 9792
VI. METALLURGY.--Chapin Wrought Iron.--By W.H. SEARLES.--An
interesting account of the combined pneumatic and
mechanical treatment of pig iron, giving as product a true
wrought iron. 9785
VII. METEOROLOGY.--On the Cause of Iridescence in
Clouds.--By G. JOHNSTONE STONEY.--An interesting theory of
the production of prismatic colors in clouds, referring it
to interference of light. 9798
The Height of Summer Clouds.--A compendious statement,
giving the most reliable estimation of the elevations of
different forms of clouds. 9797
VIII. MISCELLANEOUS.--The British Association.--Portraits
of the president and section presidents of the late
Manchester meeting of the British Association for the
Advancement of Science, with report of the address of the
president, Sir Henry E. Roscoe.--9 illustrations. 9783
IX. PHYSIOLOGY.--Hypnotism in France.--A valuable review of
the present status of this subject, now so much studied in
Paris. 9795
The Duodenum a Siphon Trap.--By MAYO COLLIER, M.S., etc.--A
curious observation in anatomy.--The only trap found in the
intestinal canal.--Its uses.--2 illustrations. 9796
X. TECHNOLOGY.--Apparatus for Testing Champagne Bottles and
Corks.--Ingenious apparatus due to Mr. J. Salleron, for use
especially in the champagne industry.--2 illustrations. 9786
Celluloid.--Notes of the history and present method of
manufacture of this widely used substance. 9785
Centrifugal Extractors.--By ROBERT F. GIBSON.--The second
installment of this extensive and important paper, giving
many additional forms of centrifugal apparatus--12
illustrations. 9789
Cotton Industries of Japan.--An interesting account of the
primitive methods of treating cotton by the Japanese.--Their
methods of ginning, carding, etc., described. 9788
Gas from Oil.--Notes on a paper read by Dr. Stevenson
Macadam at a recent meeting of the British Gas Institute,
giving his results with petroleum gas. 9787
Improved Biscuit Machine.--A machine having a capacity for
making 4,000 small biscuits per minute.--1 illustration. 9787
Improved Cream Separator.--A centrifugal apparatus for
dairy use of high capacity.--3 illustrations. 9787
The Manufacture of Salt near Middlesbrough.--By Sir
LOWTHIAN BELL, Bart., F.C.S.--The history and origin of
this industry, the methods used, and the soda ash process
as there applied. 9788
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