| TABLE OF CONTENTS. |
|---|
| I. | [CHEMISTRY AND METALLURGY.—Chemical Nature ofStarch Grains.] |
| [The Amalgamation of Silver Ores.—Descriptionof the Francke tina, or vat process for amalgamation of silverores.—By E.P. RATHBONE.—6 figures.] |
| [Interesting Facts about Platinum.—Drawstones used for drawing wire of precious metals.] |
| II. | [ENGINEERING, MINING, ETC.—Modern LocomotivePractice.—Paper read before the Civil and MechanicalEngineers' Society.—By H. MICHELL WHITLEY—10figures.] |
| [New Screw Steam Collier, Frostburg.—1figure.] |
| [Destruction of the Tardes Viaduct byWind.—With engraving.] |
| [Joy's Reversing and Expansion Valve Gear.—1figure.] |
| [The Steam Bell for Locomotives.—2figures.] |
| [Diamond Mining in Brazil.—With engravingsshowing the dam on the Ribeirao Inferno at Portao de Ferro, and thearrangement of the machinery.] |
| III. | [ELECTRICITY, ETC.—The Frankfort andOffenbach Electric Railway.—With 3 engravings.] |
| [Possibilities of the Telephone.—Its use byvessels at sea.] |
| [Pyrometers.—The inventions of Siemens andothers.] |
| IV. | [ARCHÆOLOGY.—The Cay Monument atUxmal.—Discovered by Dr. Le Plongeon on June 1,1881.—With engraving.] |
| V. | [ASTRONOMY.—The Temperature of the SolarSurface Corresponding with the Temperature Transmitted to the SunMotor.—By J. ERICSSON.—With 2 engravings of the sunmotor.] |
| VI. | [HORTICULTURE.—Halesia Hispida, a HardyShrub.—With engraving.] |
| [Windflowers or Anemone.—With engraving.] |
| VII. | [MEDICINE, HYGIENE. ETC.—What we Really Knowabout Asiatic Cholera.—By J.C. PETERS, M.D.] |
| [Dr. Koch on the Cholera.] |
| [Malaria.—The natural production of malariaand the means of making malarial countries healthier.—By C.T.CRUDELI, of Rome.] |
| [Story of Lieut. Greely'sRecovery.—Treatment by Surgeon Green.] |
| VIII. | [MISCELLANEOUS.—Bayle's New LampChimney.—With engraving.] |
| [Lieut. Greely before the British Association.] |
