I. CHEMISTRY.--On the Different Modifications of Silver Bromide
and Silver Chloride.
Analysis of New Zealand Coal.
On the Determination of Manganese in Steel, Cast Iron,
Ferro-manganese, etc.
Manganese and its Uses.
Ozokerite or Earth-wax. By WILLIAM L. LAY. A valuable
and instructive paper read before the New York Academy of
Sciences.--Showing the nature, sources, and applications of this
remarkable product.
On the Constitution of the Natural Fats.
II. ENGINEERING AND MECHANICS.--Improved Spring wheel
Traction Engine.--With two engravings.
An Improved Iron Frame Gang Saw Mill.--With one large
engraving.
The Heat Regenerative System of Firing Gas Retorts.--Siemens'
principle.--As operated at the Glasgow Corporation Works.--With
two engravings.
A New Gas Heated Baker's Oven.
III. TECHNOLOGY.--How to Produce Permanent Photographic Pictures
on Terra Cotta, Glass, etc.--With recipes and full directions.
How to Make Paper Photo Negatives.--Full directions.
Some of the Uses of Common Alum.
An Improved Cloth Stretching Machine.--With an engraving.
Purification of Woolen Fabrics by Hydrochloric Acid Gas.
Apparatus for Preventing the Loss of Carbonic Acid in Racking
Beer.--With an engraving.
IV. ELECTRICITY.--Application of Electricity to the Bleaching of
Vetable Textile Materials.--With figure of apparatus.
Table Showing the Relative Dimensions, Lengths, Electrical
Resistances, and Weights of Pure Copper Wires.
V. ASTRONOMY.--The Solar Eclipse of 1883.--An interesting abstract
from a report of C. S. HASTINGS (Johns Hopkins University), of
the American Astronomical Exhibition to the Caroline Islands.
VI. NATURAL PHILOSOPHY.--Recent Experiments Affecting the
Received Theory of Music.--An interesting paper descriptive of
certain experiments by President Morton, of Stevens Institute.
The Motions of Camphor upon Water.--With an engraving.
VII. ARCHITECTURE.--Suggestions in Village Architecture.--
Semidetached villas.--Bloomfield crescent.--With an engraving.
Specimens of Old Knocking Devices for Doors.--Several figures.
VIII. ARCHÆOLOGY.--A Buried City of the Exodus.--Being an account
of the recent excavations and discoveries of Pithom
Succoth, in Egypt.--With an engraving.
The Moabite Manuscripts.
IX. AGRICULTURE. HORTICULTURE, ETC.--The Queen Victoria
Century Plant.--With an engraving.
Charred Clover.
A New Weathercock.--With one figure.
X. MISCELLANEOUS.--New Monumental Statue and Landing Place
in Honor of Christopher Columbus at Barcelona, Spain.--With an
engraving.
Scenery on the Utah Line of the Denver and Rio Grande Railway.
Captain Matthew Webb.--Biographical sketch.--With portrait.
The Dwellings of the Poor In Paris.
Shipment of Ostriches from Cape Town, South Africa.--With one
page of engravings.
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