The Project Gutenberg EBook of Scientific American Supplement, No. 829,
November 21, 1891, by Various

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Title: Scientific American Supplement, No. 829, November 21, 1891

Author: Various

Release Date: February 14, 2005 [EBook #15051]

Language: English

Character set encoding: ASCII

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[Illustration]

SCIENTIFIC AMERICAN SUPPLEMENT NO. 829

NEW YORK, November 21, 1891.

Scientific American Supplement. Vol. XXXII, No. 829.

Scientific American established 1845

Scientific American Supplement, $5 a year.

Scientific American and Supplement, $7 a year.

* * * * *

TABLE OF CONTENTS.

I. ASTRONOMY.--The Sun's Motion in Space.--By A.M. CLERKE.--
A very interesting article on the determination of this hitherto
uncertain factor.

II. BOTANY.--Hemlock and Parsley.--By W.W. BAILEY.--Economic
botany of Umbelliferae.

Raphides--the Cause of the Acridity of Certain Plants.--By
R.A. WEBER.--Effect of these crystals on the expressed juice
from calla and Indian turnip and other plants.

The Eremuri.--A very attractive flower plant for
gardens.--1 illustration.

III. DECORATIVE ART.--The Decorative Treatment of Natural
Foliage.--By HUGH STANNUS. The first of a series of lectures
before the London Society of Arts, giving an elaborate
classification of the principles of the subject.--5
illustrations.

IV. ELECTRICITY.--The Independent--Storage or Primary Battery--System
of Electric Motive Power.--By KNIGHT NEFTEL.--Abstract of a
recent paper read before the American Street Railway Association
on the present aspect of battery car traction.

V. GEOGRAPHY.--The Colorado Desert Lake.--A description of the new
overflow into the Colorado Desert, with the prognosis of its
future.

VI. GEOLOGY.--Animal Origin of Petroleum and Paraffine.--A plea
for the animal origin of geological hydrocarbons based on
chemical and geolo