| TABLE OF CONTENTS. |
|---|
| I. | [ARCHITECTURE.—Marble and Mosaic.—ByT.R. SPENCE.—A paper recently read before the ArchitecturalAssociation, London, containing valuable suggestions for designersof buildings.] |
| [The St. Lawrence Hospital for the Insane.—ANew York State hospital recently built from designs by the Statearchitect.—Full description.—1 illustration.] |
| II. | [BOTANY.—Lavender and itsVarieties.—The history, properties, and technology of thisplant.—2 illustrations.] |
| III. | [CHEMISTRY.—A Projecting Apparatus ofPrecision.—A useful adjunct for the chemist's balance,accelerating the operation of weighing.—1illustration.] |
| [Spectrum of the Sun and Elements.] |
| [Allotropic Forms of Metals.] |
| IV. | [HYDRAULICS.—The Power of Water, orHydraulics Simplified. —By G.D. HISCOX.—Current wheelsfor power and raising water. Interesting presentation of thispractical portion of the subject. —4 illustrations.] |
| V. | [MECHANICAL ENGINEERING.—Compressed AirProduction.— By WM. L. SAUNDERS.—A Sibley Collegelecture, giving full elaboration to this importantsubject.—The various forms of compressors and generalfeatures of the service.—18 illustrations.] |
| [Improved Pneumatic Hammer.—A suspensionhammer capable of delivering 500 blows per minute.—8illustrations.] |
| [The Thermic Motor of the Future?—Aremarkable exposition of the possibilities of the gasengine.—Recent experiments under M. Aime Witz.—2illustrations.] |
| VI. | [MEDICINE AND HYGIENE.—The ElectricalPurification of Sewage and Contaminated Water.—By WM.WEBSTER.] |
| VII. | [NAVAL ENGINEERING.—The New German DispatchBoat Meteor.—A German built war vessel of greatspeed.—Her dimensions and rating.—1illustration.] |
| [The Raising of the Ulunda.—A remarkablefeat.—The raising of a steamship sunk off NovaScotia.—10 illustrations.] |
| VIII. | [TECHNOLOGY.—Starches for the Finishing ofCotton Fabrics. —Classification of starches, withillustrations of their appearance under the microscope.] |
