| TABLE OF CONTENTS. |
|---|
| I. | [ENGINEERING AND MECHANICS.--One Thousand HorsePower Corliss Engine. 5 figures, to scale, illustrating theconstruction of the new one thousand horse power Corliss engine, byHitch, Hargreaves & Co.] |
| [Opening of the New Workshop of the StevensInstitute of Technology. Speech of Prof. R.W. Raymond, speech ofMr. Horatio Allen.] |
| [Light Steam Engine for Aeronautical Purposes.Constructed for Capt. Mojoisky, of the Russian Navy.] |
| [Complete Prevention of Incrustation in Boilers.Arrangement for purifying boiler water with lime and carbonate ofsoda.--The purification of the water.--Examination of the purifiedwater.--Results of water purification.] |
| [Eddystone Lighthouse. Progress of thework.] |
| [Rolling Mill for Making Corrugated Iron. 1 figure.The new mill of Schultz, Knaudt & Co., of Essen,Germany.] |
| [Railway Turntable in the Time of Louis XIV. 1figure. Pleasure car. Railway and turntable at Mary-le-Roy Chateau,France, in 1714.] |
| [New Signal Wire Compensator. Communication from A.Lyle, describing compensators in use on the Nizam State Railway,East India.] |
| [Tangye's Hydraulic Hoist. 2 figures.] |
| [Power Loom for Delicate Fabrics. 1figure.] |
| [How Veneering is Made.] |
| II. | [TECHNOLOGY AND CHEMISTRY.--The Constituent Partsof Leather. The composition of different leathers exhibited at theParis Exhibition.--Amount of leather produced by different tonnagesof 100 pounds of hides.--Percentage of tannin absorbed underdifferent methods of tanning.--Amounts of gelatine and tannin inleather of different tonnages, etc.] |
| [Progress in American Pottery.] |
| [Photographic Notes.--Mr. Waruerke's NewDiscovery.--Method of converting negatives directly intopositives.--Experiments of Capt. Bing on the sensitiveness of coaloil--Bitumen plates.--Method of topographic engraving. ByCommandant DE LA NOE.--Succinate of Iron Developer.--Method ofmaking friable hydro-cellulose.] |
| [Photo-Tracings in Black and Color.] |
| [Dyeing Reds with Artificial Alizarin. By M.MAURICE PRUD'HOMME.] |
| III. | [ELECTRICITY, PHYSICAL SCIENCE, ETC.--On Faure'sSecondary Battery.] |
| [Physical Science in Our Common Schools.--Anexceptionally strong argument for the teaching of physical scienceby the experimental method in elementary schools, with an outlineof the method and the results of such teaching.] |
| [On the Law of Avogadro and Ampere. By E.VOGEL.] |
| IV. | [GEOGRAPHY, GEOLOGY, ETC.--Petroleum and Coal inVenezuela.] |
| [Geographical Society of the Pacific.] |
| [The Behring's Straits Currents.--Proofs of theirexistence.] |
| [Experimental Geology.--Artificial production ofcalcareous pisolites and oolites.--On crystals of anhydrouslime.--4 figures.] |
| V. | [NATURAL HISTORY, ETC.--Coccidæ. By Dr. H.BEHR.--An important paper read before the California Academy ofSciences.--The marvelous fecundity of scale bugs.--Theiruses.--Their ravages.--Methods of destroying them.] |
| [Agricultural Items.] |
| [Timber Trees.] |
| [Blood Rains.] |
| VI. | [MEDICINE AND HYGIENE.--Medical Uses ofFigs.] |
| [Topical Medication in Phthisis.] |
| VII. | [ARCHITECTURE, ETC.--Suggestions inArchitecture.--Large illustration.--The New High School for Girls,Oxford, England.] |
