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