Storage Batteries for Electric Locomotion--By A. RECKENZAUN--A
valuable paper on this subject, giving historical facts and
working figures of expense, etc. 9903

The Telemeter System--By R.F. UPTON--The system of Oe.L. Clarke,
of New York, as described before the British Association--A
valuable tribute to an American inventor--1 illustration. 9900

VI. METALLURGY.--The Newbery-Vautin Chlorination Process--A new
process of extracting gold from its ores, with details of the
management of the process and apparatus--1 illustration. 9907

VII. MISCELLANEOUS.--A Gigantic Load of Lumber--The largest barge
load of lumber ever shipped--The barge Wahnapitae and her
appearance as loaded at Duluth--1 illustration. 9907

Apparatus for Exercising the Muscles--An appliance for use by
invalids requiring to exercise atrophied limbs--1 illustration. 9908

Practical Education.--A plea for the support of manual training
schools. 9906

Waves--The subject of ocean waves fully treated--An interesting
_resume_ of our present knowledge of this phenomenon of
fluids. 9906

VIII. NAVAL ENGINEERING--The New Spanish Armored Cruiser Reina
Regente.--Illustration and full description of this recent
addition to the Spanish navy.--1 illustration. 9895

The Spanish Torpedo Boat Azor--Illustration and note of speed,
etc., of this new vessel--1 illustration. 9895

IX. OPHTHALMOLOGY--The Bull Optometer--An apparatus for testing
the eyesight.--The invention of Dr George J. Bull.--3
illustrations. 9908

X. SANITATION AND HYGIENE--The Sanitation of Towns--By J. GORDON,
C.E.--A presidential address before the Leicester meeting of
the Society of Municipal and Sanitary Engineers and Surveyors
of England. 9909

XI. TECHNOLOGY--A New Monster Revolving Black Ash Furnace and the
Work Done with It--By WATSON SMITH--The great furnace of the
Widnes Alkali Company described, with results and features of
its working--4 illustrations.