The Project Gutenberg EBook of Scientific American Supplement, No. 421,
January 26, 1884, by Various

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Title: Scientific American Supplement, No. 421, January 26, 1884

Author: Various

Release Date: July 24, 2005 [EBook #16353]

Language: English

Character set encoding: ASCII

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[Illustration]

SCIENTIFIC AMERICAN SUPPLEMENT NO. 421

NEW YORK, JANUARY 26, 1884

Scientific American Supplement. Vol. XVII., No. 421.

Scientific American established 1845

Scientific American Supplement, $5 a year.

Scientific American and Supplement, $7 a year.

* * * * *

TABLE OF CONTENTS

I. ENGINEERING AND MECHANICS.--Furcot's Six Horse Power
Steam Engine.--With several figures. 6714

Foot Lathes.--With engraving. 6715

Endless Trough Conveyer.--2 engravings. 6715

Railroad Grades of Trunk Lines. 6715

English Express Trains.--Average speed, long runs, etc. 6715

Apparatus for Separating Substances Contained in the
Waste Waters of Paper Mills, etc.--2 figures. 6717

II. TECHNOLOGY.--An English Adaptation of the American Oil
Mill.--Description of the apparatus, and of the old and
new processes.--Several engravings. 6716

Large Blue Prints.--By W.B. Parsons, Jr. 6717

III. ELECTRICITY, ETC.--Electrical Apparatus for Measuring
and for Demonstration at the Munich Exhibition.--With
descriptions and numerous illustrations of the different
machines. 6711

A New Oxide of Copper Battery.--By F. De Lalande and S.
Chaperon.--With description and three illustrations. 6714

IV. MATHEMATICS, ETC.--To Find the Time of Twilight.--1 figure. 6720

A New Rule for Division in Arithmetic. 6725

Ex