SCIENTIFIC AMERICAN SUPPLEMENT NO. 299

NEW YORK, SEPTEMBER 24, 1881

Scientific American Supplement. Vol. XII, No. 299.

Scientific American established 1845

Scientific American Supplement, $5 a year.

Scientific American and Supplement, $7 a year.


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TABLE OF CONTENTS.
I.ENGINEERING AND MECHANICS.--On the Progress anddevelopment of the Marine Engine.--Marine engines.--The marineboiler.--Steel boilers.--Corrosion of boilers.--How the marineengine may be improved.--Consumption of fuel.--Evaporativeefficiency of marine locomotive boilers.--Screw propellers
Steam Ferry Boats of the Port of Marseilles.--2figures.-- Transverse and longitudinal sections
Opening of a New English Dock. 1 figure
Improved Grain Elevator. 1 figure
Improved Dredger. 1 figure.--Single bucket dipperdredger
Railway Alarm Whistle
Furnace for the Manufacture of Sulphide of Carbon.1 figure
Brouardel's Dry Inscribing Manometer. 1figure.--Gas indication of manometer
Centrifugal Apparatus for Casting Metals. 4figures.--Centrifugal metal moulding apparatus
Apparatus for the Manufacture of Wood Pulp. 2figures.--Dresel's wood pulp apparatus
Recent Progress of IndustrialScience.--Presidential address, Convention of MechanicalEngineers
The Hoboken Drainage Problem
II.TECHNOLOGY AND CHEMISTRY--On some RecentImprovements in Lead Processes. By NORMAN C. COOKSON
Apparatus Used in Berlin for the Preparation ofGelatine Plates.-- I. Mixing apparatus.--II. Digestiveapparatus.--III. Triturating apparatus--IV. Washing apparatus--3figures
How To Make Emulsions In Hot Weather. By A. L.HENDERSON
The Distillation and Rectification of Alcohols bythe Rational Use of Low Temperatures. By RAOUL PICTET.--1figure.--Pictet's apparatus for the rectification of alcohol bycold
The Removal of Noxious Vapors from RoastingFurnace Gases
New Gas Exhauster. 1 figure
Advance in the Price of Glycerine
Analysis of Oils or Mixtures of Oils Used forLubricating Purposes