| TABLE OF CONTENTS. |
|---|
| I. | [CHEMISTRY.--On the Different Modifications ofSilver Bromide and Silver Chloride.] |
| [Analysis of New Zealand Coal.] |
| [On the Determination of Manganese in Steel, CastIron, Ferro-manganese, etc.] |
| [Manganese and its Uses.] |
| [Ozokerite or Earth-wax. By WILLIAM L. LAY. Avaluable and instructive paper read before the New York Academy ofSciences.--Showing the nature, sources, and applications of thisremarkable product.] |
| [On the Constitution of the Natural Fats.] |
| II. | [ENGINEERING AND MECHANICS.--Improved Spring wheelTraction Engine.--With two engravings.] |
| [An Improved Iron Frame Gang Saw Mill.--With onelarge engraving.] |
| [The Heat Regenerative System of Firing GasRetorts.--Siemens' principle.--As operated at the GlasgowCorporation Works.--With two engravings.] |
| [A New Gas Heated Baker's Oven.] |
| III. | [TECHNOLOGY.--How to Produce PermanentPhotographic Pictures on Terra Cotta, Glass, etc.--With recipes andfull directions.] |
| [How to Make Paper Photo Negatives.--Fulldirections.] |
| [Some of the Uses of Common Alum.] |
| [An Improved Cloth Stretching Machine.--With anengraving.] |
| [Purification of Woolen Fabrics by HydrochloricAcid Gas.] |
| [Apparatus for Preventing the Loss of CarbonicAcid in Racking Beer.--With an engraving.] |
| IV. | [ELECTRICITY.--Application of Electricity to theBleaching of Vetable Textile Materials.--With figure ofapparatus.] |
| [Table Showing the Relative Dimensions, Lengths,Electrical Resistances, and Weights of Pure Copper Wires.] |
| V. | [ASTRONOMY.--The Solar Eclipse of 1883.--Aninteresting abstract from a report of C. S. HASTINGS (Johns HopkinsUniversity), of the American Astronomical Exhibition to theCaroline Islands.] |
| VI. | [NATURAL PHILOSOPHY.--Recent Experiments Affectingthe Received Theory of Music.--An interesting paper descriptive ofcertain experiments by President Morton, of StevensInstitute.] |
| [The Motions of Camphor upon Water.--With anengraving.] |
| VII. | [ARCHITECTURE.--Suggestions in VillageArchitecture.-- Semidetached villas.--Bloomfield crescent.--With anengraving.] |
| [Specimens of Old Knocking Devices forDoors.--Several figures.] |
| VIII. | [ARCHÆOLOGY.--A Buried City of theExodus.--Being an account of the recent excavations and discoveriesof Pithom Succoth, in Egypt.--With an engraving.] |
| [The Moabite Manuscripts.] |
| IX. | [AGRICULTURE. HORTICULTURE, ETC.--The QueenVictoria Century Plant.--With an engraving.] |
| [Charred Clover.] |
| [A New Weathercock.--With one figure.] |
| X. | [MISCELLANEOUS.--New Monumental Statue and LandingPlace in Honor of Christopher Columbus at Barcelona, Spain.--Withan engraving.] |
| [Scenery on the Utah Line of the Denver and RioGrande Railway.] |
| [Captain Matthew Webb.--Biographical sketch.--Withportrait.] |
| [The Dwellings of the Poor In Paris.] |
| [Shipment of Ostriches from Cape Town, SouthAfrica.--With one page of engravings.] |
