Scientific American Supplement, No. 598, June 18, 1887   By: Various

SCIENTIFIC AMERICAN SUPPLEMENT NO. 598

NEW YORK, JUNE 18, 1887

Scientific American Supplement. Vol. XXIII, No. 598.

Scientific American established 1845

Scientific American Supplement, $5 a year.

Scientific American and Supplement, $7 a year.

TABLE OF CONTENTS.

I. BOTANY. The Brazil Nut. The botanical position, appearance, etc., and general features of the tree and plant. 1 illustration.

II. DECORATIVE ART. Decoration. The study of ornaments. By Miss MARIE R. GARESCHE. The principles of ornament and relations between nature and art; ancient and mediæval art contrasted. 1 illustration.

III. ELECTRICITY. Electric Registering Apparatus for Meteorological Instruments. Grime's telemareograph described; an apparatus giving distant registrations of tidal phenomena. 2 illustrations.

The Montaud Accumulator. Full account of construction and power of this recent battery. 4 illustrations.

IV. ENGINEERING. Belt Joints. A new cement, the "Hercules glue," and its adaptation for cementing belt joints.

V. MINERALOGY. Precious Stones of the United States. A review of Mr. G.F. KUNZ'S recent report on this subject.

VI. MISCELLANEOUS. A Clinical Lesson at "La Salpetriere." A portraiture picture by M. ANDRE BROUILLET, of a clinic. 2 illustrations.

Inauguration of the statue of Denis Papin. The statue to Papin erected in Paris by popular subscription. 1 illustration.

The Action of the Magnet in Hypnosis. The nullity of the action of the magnet disclosed.

To Find the Day of the Week for any Year. A new method devised by Lewis Carroll.

VII. NAVAL ENGINEERING. Some Recent High Speed Twin Screws. By E.A. LINNINGTON. An important paper on the subject of screw propulsion. 6 illustrations.

The Havre Maritime Exhibition. Notes on the recently opened exhibition of ships and naval appliances at Havre. 1 illustration.

The New German Corvette Greif. A recent addition to the German fleet illustrated and described. 1 illustration.

The Steamship Great Eastern. A plea for the mammoth steamer. Probabilities of her future usefulness.

Twin Screw Torpedo Boat. The new sea going vessel built by Yarrow & Co. for the Italian government. Her extraordinary speed.

VIII. ORDNANCE. Our Coast Defenses. An interesting summary by Gen. H.L. ABBOTT of our means for defending our coasts.

The New Krupp Guns. The dimensions of the largest guns in the world, now in process of construction at Essen. 2 illustrations.

IX. PHYSICS. Colors of Thin Plates. Report of a recent lecture by Lord Rayleigh.

X. TECHNOLOGY. Recent Advances in Sewing Machines. By JOHN W. URQUHART. A recent lecture before the Society of Arts of London, giving an exhaustive review of the subject. 15 illustrations.

THE HAVRE MARITIME EXHIBITION.

The Havre Maritime Exhibition opened on the 7th of May.

Will this exhibition awaken general interest, or will it prove a local affair simply? This is a secret of the weeks that are to follow.

Should nothing chance to discourage the general interest that surrounds Havre, to dampen the enthusiasm of the public, or to act to the prejudice of the exhibitors, whose very evident desire is to show nothing but remarkable products in every line, the International Maritime Exhibition will prove a great success.

[Illustration: THE INTERNATIONAL MARINE EXHIBITION AT HAVRE. THE PRINCIPAL ENTRANCE.]