SCIENTIFIC AMERICAN SUPPLEMENT NO. 385

NEW YORK, MAY 19, 1883

Scientific American Supplement. Vol. XV., No. 385.

Scientific American established 1845

Scientific American Supplement, $5 a year.

Scientific American and Supplement, $7 a year.


TABLE OF CONTENTS.
I.NATURAL HISTORY.--Fishes of Cuban Waters.
Panax Victoriæ.--1 Illustration.
A Note on Sap. By Prof. ATTFIELD.
The Crow.--Illustration.
The Praying Mantis and itsAllies.--Illustration.
May Flies.--2 illustrations.
II.TECHNOLOGY.--A Quick Way to Ascertain the Focus ofa Lens.--1 diagram.
The History of the Pianoforte. By A.J.HIPKINS.--Different parts of a pianoforte and their uses.--Inventorof the instrument and his "action."--First Germanpiano-maker.--Square pianos.--Pianos of Broadwood, Backers,Stodart, and Erard.--Introduction of metal tubes, plates, bars, andframes.--Improvements of Meyer, the Steinways, Chickerings, andothers.--Upright pianos.--Several figures.
III.MEDICINE AND HYGIENE.--The Poisonous Properties ofNitrate of Silver and a Recent Case of Poisoning with the Same. ByH. A. MOTT, Jr.
Tubercle Bacilli in Sputa.
Malaria. By Dr. JAMES H. SALISBURY.--VIII. Localobservations.--Effect of the sun on ague plants.--Investigationsinto the cause of ague.--Notes on marsh miasm.--Analysis of malaria plant.--Numerous figures.
IV.ENGINEERING.--Torpedo Boats.--Full pageillustration.
Pictet's High Speed Boat.--Several figures anddiagrams.
Initial Stability Indicator for Ships.--4figures.
V.ELECTRICITY, LIGHT, AND HEAT.--Scrivanow'sChloride of Silver Pile.--2 figures.
On the Luminosity of Flame.
VI.CHEMISTRY.--New Bleaching Process, withRegeneration of the Baths Used. By M. BONNEVILLE.
Detection of Magenta, Archil, and Cudbear inWine.
VII.ARCHITECTURE.--The Pantheon at Rome.
VIII.MISCELLAN
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