profuse illustrations of experiments.--14 illustrations

The Telegraphic Communication between Great Britain,
Europe, America, and the East.--By GEORGE WALTER NIVEN.--
The engineering aspects of electricity.--The world's cables and
connections.--2 illustrations

VI. HORTICULTURE.--Herbaceous Grafting.--A hitherto little practiced
and successful method of treating herbs, with curious results

VII. MECHANICAL ENGINEERING.--Improved Cold Iron Saw.--The
"Demon" cold saw for cutting Iron.--Its capacity and general
principles.--1 illustration

VIII. MEDICINE AND HYGIENE.--How to Prevent Hay Fever.--By
ALEXANDER RIXA.--A systematic treatment of this very troublesome
complaint, with a special prescription and other treatment.

IX. MISCELLANEOUS.--The Business End of the American Newspaper.--By
A.H. SIEGFRIED.--A graphic presentation of the
technique of the newspaper office, circulation of the American
papers, methods of printing, etc.

The New Labor Exchange at Paris.--A new establishment, long
demanded by the laboring population of Paris.--Its scope and
prospects.--2 illustrations

X. NAVAL ENGINEERING.--The Empress of India.--The pioneer
of a fast mail service to ply in connection with the Canadian
Pacific Railway between Vancouver, China, and Japan.--1 illustration

XI. PHYSICS.--Stereoscopic Projections.--A most curious method
of securing stereoscopic effects with the magic lantern upon the
screen, involving the use of colored spectacles by the spectators.
--1 illustration

XII. TECHNOLOGY.--Gaseous Illuminants.--By Prof. VIVIAN B.
LEWES.--The fifth and last of Prof. Lewes' Society of Arts lectures,
concluding his review of the subject of gas manufacture

* * * * *

THE NEW LABOR EXCHANGE AT PARIS.

There will soon be inaugurated (probably about the 14th of July) a new
establishment that has long been demanded by the laboring population,
that is to say, a new labor exchange, the buildings of which, situated
on Chateau d'Eau Street, are to succeed the provisional exchange
installed in the vicinity of Le Louvre Street. The new structures have
been erected from plans by Mr. Bouvard, and occupy an area of
seventeen hundred meters.

The main work is now entirely terminated, but the interior decorations
are not yet completely fin