| TABLE OF CONTENTS. |
|---|
| I. | [CHEMISTRY AND METALLURGY.--Carbon inSteel.] |
| [Heat developed in Forging.] |
| [Recent Studies on the Constitution ofAlkaloids.--Extract from a lecture delivered before thePhiladelphia College of Pharmacy. --By SAML.P. SADTLER.] |
| II. | [ENGINEERING AND MECHANICS.--Apparatus forExtracting Starch from Potatoes.--With engraving.] |
| [A Simple Apparatus for describing Ellipses.--ByProf. E.J. HALLOCK. 1 figure.] |
| [A Novel Propeller Engine.--With full descriptionand numerous engravings.--By Prof. MACCORD.] |
| [The New Russian Torpedo Boat, the Poti.--Withengraving.] |
| [A New Steamer Propelled by HydraulicReaction--Figures showing plan and side views of thesteamer.] |
| [A New Form of Flexible Band Dynamometer.--By Prof.W.C. UNWIN. 4 figures.] |
| III. | [TECHNOLOGY.--Enlarging on Argentic Paper andOpals.--By A. GOODALL.] |
| [The Manufacture and Characteristics ofPhotographic Lenses.] |
| [Improved Developers for Gelatine Plates.--By DR.EDER.] |
| [The Preparation of Lard for Use in Pharmacy.--ByProf. REDWOOD.] |
| [Anti-Corrosion Paint.] |
| [Manufacture of Charcoal in Kilns.--Differentkilns used.] |
| IV. | [ART, ARCHITECTURE, AND ARCHÆOLOGY.--TheGerman National Monument.--With two engravings of the statues ofPeace and War.] |
| [The Art Aspects of Modern Dress.] |
| [Artisans' Dwellings, Hornsey, London.--Withengraving.] |
| [Discovery of Ancient Church InJerusalem.] |
| V. | [ELECTRICITY, HEAT. ETC.--See's Gas Stove.--Withengraving.] |
| [Rectification of Alcohol by Electricity. 3engravings showing Apparatus for Hydrogenizing Impure Spirits.Electrolyzing Apparatus, and Arrangement of the SiemensMachine.] |
| VI. | [GEOLOGY.--On the Mineralogical Localities in andaround New York City.--By NELSON H. DARTON.] |
| VII. | [NATURAL HISTORY.--The Zoological Society'sGardens, London.--With full page engravings showing the new ReptileHouse, and the Babiroussa family.] |
| VIII. | [HORTICULTURE.--The Kauri Pine--DamarraAustralis.-- With engraving.] |
| [How to Successfully Transplant Trees.] |
| IX. | [MEDICINE, HYGIENE, ETC.--On the Treatment ofCongestive Headache.--By Dr. J.L. CORNING.] |
| [The Use of the Mullein Plant in the Treatment ofPulmonary Consumption.--By Dr. J.B. QUINLAN.] |
| [Action of Mineral Waters and of Hot Water uponthe Bile.] |
| [Vivisection.--Apparatus Used.--Full page ofengravings.] |
| [Insanity from Alcohol.--Intemperance a fruitfulas well as inexhaustible source for the increase of insanity.--ByDr. A. BAER, Berlin.] |
| [Plantain as a Styptic.--By J.W. COLCORD.] |
| [Danger from Flies.] |
