of this compound and its
properties

New Boron Compounds.--Compounds of boron, phosphorus, and
iodine recently prepared by M. MOISSAN

Sapotin, a New Glucoside.--By GUSTAVE MICHAUD.--Preparation
of a new glucoside from almonds and other sources

V. CIVIL ENGINEERING.--Completion of the Mersey Tunnel Railway.--The
penetration of the bed of the Mersey River by a tunnel
at the rate of 150 feet per week.--Details of the work

VI. EDUCATIONAL SCIENCE.--Chinese Competitive Examinations.
--Interesting details of the famous examinations of China.--Fatal
consequences to overworked competitors

VII. ELECTRICAL ENGINEERING.--High Speed Engine and Dynamo.--A
high speed compound engine, running at 500 revolutions
per minute, with direct-driven dynamo for electric lighting.--3
illustrations

VIII. MEDICINE.--The Treatment of Rattlesnake Bite by Permanganate
of Potassium, Based on Nine Successful Cases.--By
AMOS W. BARBER, M.D.--The use of this powerful disinfectant,
and the proper treatment and mode of applying it.

IX. METEOROLOGY.--Modification of Our Climate.--By JOSEPH
WALLACE.--Climate epochs and the probabilities of the present
climatic era.--Changes within the records of man

The Eruption of Krakatoa.--A graphic description of this catastrophe,
involving the lives of 35,000 people

X. MILITARY ENGINEERING.--The Military Engineer and His
Work.--By Col. W.R. KING.--A Sibley College lecture, treating
of the special problems In fortifications, sieges, and the more
pacific work of surveys and explorations

XI. MINERALOGY.--Natural Sulphide of Gold.--By T.W.T.
ATHERTON.--A probable new occurrence of gold

XII. NATURAL HISTORY.--The Living Jerboa in the Zoological
Garden of Berlin.--A rare rodent from South Africa, one seldom
seen alive in captivity.--5 illustrations

XIII. NAVAL ENGINEERING.--Twenty-four Knot Steamers.--The possibility of
fast ships for long voyages.--The prospects and difficulties

XIV. RAILROAD ENGINEERING.--A Steam Street Railway Motor.--A
noiseless motor built of steel on trial in Chicago.--1 illustration

XV. SANITARY ENGINEERING.--Some Means of Purifying
Water.--Different filtering processes and the subsidence treatment
of water

XVI. TECHNOLOGY.--Action of Caustic Soda on Wood.--By M.H.
TAUSS.--