SCIENTIFIC AMERICAN SUPPLEMENT NO. 601
NEW YORK, JULY 9, 1887
Scientific American Supplement. Vol. XXIV, No. 601.
Scientific American established 1845
Scientific American Supplement, $5 a year.
Scientific American and Supplement, $7 a year.
TABLE OF CONTENTS.
I.ASTRONOMY.--A Star Finder.--A simple apparatusthat can be constructed by any mechanic.--1 illustration.
Photographic Study of Stellar Spectra, HarvardCollege Observatory. --First annual report of the Henry Drapermemorial observations. --Review of the work by Prof. EDWARD C.PICKERING.
II.BIOLOGY.--Sponges.--The growth and life history ofsponges.--Report of a recent lecture at the London RoyalInstitution by Dr. R. VON LEDENFELD.
III.ELECTRICITY.--Phenomena of AlternatingCurrents.--By Prof. ELIHU THOMSON.--16 illustrations.
IV.ENGINEERING.--An English CarCoupling.--Description of an English automatic coupling.--2illustrations.
A New Process of Casting Iron and other Metalsupon Lace, Embroideries, Fern Leaves, and other CombustibleMaterials. --By A.E. OUTERBRIDGE, JR.--A new and eminentlypractical process of producing ornamental castings.--4illustrations.
Bricks and Brick Work.--By Prof. T. ROGER SMITH,F.R.I.B.A. --The history and technical review of this subject.--Amost remarkable contribution to the engineering ofarchitecture.
Link Belting.--By CHARLES A. SCHIEREN.--Aninteresting and practical paper on leather belting made of links.--9 illustrations.
Recent Progress in Gas Engineering.--A lecture byMr. A. MACPHERSON, of Kirkcaldy, reviewing the last improvements inthis branch.
V.MISCELLANEOUS.--Herbet's Tepid Douche.--Apparatusin use for bathing soldiers in the French barracks.--1illustration.
Kent's Torsion Balance.--A new type of balance,involving torsional suspension instead of knife edges.--5illustrations.
Preservative Liquid.--Note on preservation oforganic substances.
The Falls of Gairsoppa.--The great Indian falls,higher than Niagara.--2 illustrations.
The New British Coinage and JubileeMedal.--Illustrations and descriptions of the new pieces.--8illustrations.
The Winner of the Derby.--Portrait anddescription of Merry Hampton.
VI.NAVAL ENGINEERING.--The Falke T                        
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