| TABLE OF CONTENTS. |
|---|
| I. | [ BOTANY.—New Race of Dwarf Dahlias.—A new and valuable flowering plant, with portrait of the introducer.—1 illustration.] |
| II. | [ CHEMISTRY.—Carbon in Organic Substances.—By J. MESSINGER.— An improved method of determining carbon by inorganic combustions.—1 illustration.] |
| III. | [ CIVIL ENGINEERING.—A New Integrator.—By Prof. KARL PEARSON. M.A.—An apparatus for use for the engineer in working up areas, indicator diagrams, etc.—4 illustrations.] |
| | [Best Diameter of Car Wheels.—The size of car wheels from the standpoint of American engineering.—A plea for a moderate sized wheel.] |
| | [Improved Overhead Steam Traveling Crane.—A crane constructed for use in steel works.—Great power and range.—3 illustrations.] |
| | [Some Hints on Spiking Track.—A most practical article for telling exactly how to conduct the operation on the ground.—1 illustration.] |
| IV. | [ ELECTRICITY.—Electrical Laboratory for Amateurs.—By GEO. M. HOPKINS.—A simple collection of apparatus for conducting a complete series of electrical experiments.—17 illustrations.] |
| | [The Action of the Silent Discharge on Chlorine.—How an electric discharge affects chlorine gas.—An important negative result.] |
| V. | [ ETHNOLOGY.—Some Winnebago Arts.—An interesting article upon the arts of the Winnebago Indians.—A recent paper before the New York Academy of Sciences.] |
| VI. | [ MEDICINE AND HYGIENE.—The Philosophy of Consumption. —By Dr. J.S. CHRISTISON.—A review of the present theories of consumption, and the role played in it by its bacillus.] |
| VII. | [ MUSIC.—Spacing the Frets on a Banjo Neck.—By Prof. C.W. MACCORD.—A most practical treatment of this subject, with full explanations.—1 illustration.] |
| VIII. | [ORDNANCE.—High Explosives in Warfare.—By Commander F.M. BARBER, U.S.N.—An elaborate review of modern explosives in their applicability to ordnance, etc.] |
| | [The Experiments at the Annapolis Proving Grounds.—The recent tests at Annapolis described and illustrated.—Views of the projectiles, plates, etc.—3 illustrations.] |
| IX. | [ PHYSICS.—Aræo-Picnometer.—An entirely novel form of hydrometer, of very extended use and application.—1 illustration.] |
| X. | [ TECHNOLOGY.—Fabric for Upholstery Purposes.—Full technical description of the method of producing a new and characteristic fabric.—1 illustration.] |
| | [Gaseous Illuminants.—By Prof. VIVIAN B. LEWES.—Continuation of this important article, treating of the water gas and special processes, with analyses.] |
| | [Glove Making.—Early history of glove making in America.—Its present aspects and processes.] |
| | [Reversible Ingrain or Pro-Brussels Carpet.—An imitation of Brussels carpet on the Ingrain principle.—Full description of the process of making.—3 illustrations.] |
| | [The Manufacture and Use of Plaster of Paris.—An excellent treatment of a subject hitherto little written about.—Full particulars of the manufacturing process.] |
