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EBOOK SCIENTIFIC AMERICAN ***
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[Illustration]
SCIENTIFIC AMERICAN SUPPLEMENT NO. 794
NEW YORK, March 21, 1891
Scientific American Supplement. Vol. XXXI., No. 794.
Scientific American established 1845
Scientific American Supplement, $5 a year.
Scientific American and Supplement, $7 a year.
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TABLE OF CONTENTS
I. BOTANY.--New Race of Dwarf Dahlias.--A new and valuable
flowering plant, with portrait of the introducer.--1 illustration.
II. CHEMISTRY.--Carbon in Organic Substances.--By J. MESSINGER.--
An improved method of determining carbon by inorganic
combustions.--1 illustration.
III. CIVIL ENGINEERING.--A New Integrator.--By Prof. KARL
PEARSON. M.A.--An apparatus for use for the engineer in working
up areas, indicator diagrams, etc.--4 illustrations.
Best Diameter of Car Wheels.--The size of car wheels from the
standpoint of American engineering.--A plea for a moderate sized
wheel.
Improved Overhead Steam Traveling Crane.
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