VI. MATHEMATICS.--The Trisection of Any Angle.--By FREDERIC R.
HONEY, Ph.B.--A very ingenious demonstration of this problem,
based on the properties of conjugate hyperbolas

VII. METEOROLOGY.--Note on the Mt. Blanc Meteorological Station

The Flood at Karlsbad.--Account of the recent flood and of its
destructive effects.--1 illustration

VIII. MECHANICAL ENGINEERING.--Station for Testing Agricultural
Machines.--A proposed establishment for applying dynamometer
tests to agricultural machines.--1 illustration

Steam Engine Valves.--By THOMAS HAWLEY.--A review of modern
slide valve practice, the lap, cut-off, and other points.--6
illustrations

IX. MISCELLANEOUS.--Science in the Theater.--Curious examples of
stage effect in fictitious mesmerizing and hypnotizing.--4
illustrations

Theatrical Water Plays.--Recent episodes in real water plays at
Hengler's Circus, London.--2 illustrations

X. NAVAL ENGINEERING.--The French Ironclad War Ship Colbert.--An
armored wood and iron ship, with central battery.--1
illustration

XI. PHYSIOLOGY AND HYGIENE.--Newer Physiology and Pathology.--By