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Scientific American Supplement. Vol. XVII, No. 430.

Scientific American Supplement, No. 430, March 29, 1884

Scientific American Supplement, $5 a year.

Scientific American Supplement, No. 430, March 29, 1884

Scientific American and Supplement, $7 a year.

Scientific American Supplement, No. 430, March 29, 1884

I. ENGINEERING, MECHANICS, ETC.--The Iron Industry In Brazil.--By Prof. P. FEHRAND.--Methods of obtaining iron.--Operation of the system.--Elaboration of the ore.--Setting up a forge.-- Selling price of iron

The Steamer Churchill, built by Messrs. Hall, Russell & Co., for service at Natal.--With full page of illustrations

Falconetti's Continuously Primed Siphon.--Manner of carrying a water course over a canal, river, or road.--With engraving

The Weibel-Piccard System of Evaporating Liquids.-- 2 illustrations

II. TECHNOLOGY.--Coal Gas as a Labor--saving Agent in Mechanical Trades.--By T. FLETCHER.--Gas as fuel.--Arrangement of burners for disinfection, for drying glue, albumen, etc.--Best burners. --Gas bars for furnaces, etc.

Instantaneous Photography.--Several illustrations

III. ELECTRICITY, MAGNETISM, ETC.--Electric Launches.--A paper read before the Society of Arts by A. RECKENZAUN, and discussion on the same.--Advantages of electromotive power.-- Cost of same.--Experimental electric launches

First Experiments with the Electric Light.--Sir Humphry Davy's experiments in 1813,--With two engravings

Electrical Grapnel for Submarine Cables and Torpedo Lines.-- 3 figures

Apparatus for Measuring Small Resistances.--With engraving and diagram

Terrestrial Magnetism.--Magnetism on railways.--Synchronous Seismology

IV. ARCHITECTURE.--Adornments of the New Post Office at Leipzig.-- 2 engravings

V. NATURAL HISTORY, ETC.--Comparison of Strength of Large and Small Animals.--By W. N. LOCKINGTON

VI. HORTICULTURE, BOTANY. ETC.--The Dodder.--A new parasitic plant.--With engraving

VII. MEDICINE, HYGIENE ETC.--Nutritive Value of Condiments.--By H. D. ABBOTT

VIII. MISCELLANEOUS.--Mont St. Michel, Normandy.--With engraving

The genus _Cuscuta_ contains quite a number of species which go under the common name of dodder, and which have the peculiarily of living as parasites upon other plants. Their habits are unfortunately too well known to cultivators, who justly dread their incursions among cultivated plants like flax, hops, etc.