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Biographical Primers by Joseph Bennett.
Berlioz, Chopin, Rossini, Cherubini and Meyerbeer, .

Paper, each 400., cloth 75c.
Biographical Dictionary of Musicians, by Cummings,.

Paper 75c., boards $1.00 Various.

Beethoven and His Nine Symphonies, by Grove, Cloth, price $2.40 The Beautiful in Music, by Hanslick, .

2.40 Wagner's "The Mastersingers of Nuremberg, " Tristan and

Isolde," "Parsifal,'' by Albert Heintz, .. Paper, price 60c. each
Summary of the History and Development of Medieval and

Modern European Music, by Parry, Paper 75c., boards $1.00
Music in Its Relation to the Intellect and the Emotions, by
Stainer,

Paper, price 750. A Dictionary of Musical Terms, by Stainer & Barrett,

• Cloth, price $3.00 A Dictionary of Musical Terms (Abbreviated), by Stainer & Barrett,

Paper 40c., boards 65c. A Handbook of Examinations in Music, containing 600

questions and answers, by E. A. Dick, . Cloth, price $1.50 The Rudiments of Music, by Cummings,

Price 400. Music Primers and Education Series, 56 books, a complete music library, singly from 40c. to $2.00 per book,

Complete, $25.00

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Compositions of Thomas Whitney Surette.
“The Eve of St. Agnes," dramatio ballad for Soli, Chorus
and Orchestra,

Vocal Score 750. Arietta from “The Eve of St. Agnes,” for Violin and Piano, . . $1.00 "Portraits," five pieces for the Pianotorte,

$1.00 Two pieces from "Portraits” for Cello and Piano,

$1.00 Two Anthems { De How Amiable,” “Let God

Price 10c.

Price 50. “The Pilgrims' Song,”

Price 60c.
Send for Catalogue,

NOVELLO, EWER & CO.,
21 East Seventeenth Street, New York City.

University Extension Lectures

Syllabus

of a

Course of Six Lectures

on

Physical Geography

By

William Libbey, Sc. D.

Professor of Physical Geography, Princeton University

No. 221

Price, 10 conts

Copyright, 1903, by
The American Society for the Extension of University Teaching

111 South Fifteenth Street, Philadelphia, Pa.

LECTURE I.

Erosion.

I. Preliminary definitions.

1. What is erosion?

Examples in plastic and granular materials. 2. Where does erosion usually begin?

II. Causes of erosion.

1. Rain.
2. Wind.
3. Heat and cold.
4. Frost.
5. Glaciers and icebergs.
6. Waves.
7. Rivers.

(a) Angle of inclination.
(6) Rate of flow.
(c) Chemical and mechanical effects.
(d) Transporting power of rivers.

1. Causes.

2. How it varies.
(e) Erosive power depends upon:

1. Amount of friction.
2. Geological structure.

III. Results produced.

1. At foot of mountain. 2. In river bed. 3. Overflows. 4. In lakes. 5. Bars. 6. Deltas,

REFERENCES.

Dana, Geology, pp. 637–652.
Scott, Geology, pp. 71-87.
Tarr, Elementary Physical Geography, pp. 231-248.
Mill, Realm of Nature, pp. 231-235.
Dryer, Physical Geography, pp. 210-223.

LECTURE II.

Colorado Canyon: Especial Illustration of Erosion.

1. General idea of section of country in which it is found. 2. The Great Basin. 3. Structure of San Rafael Swell. 4. Periods of depression and deposit. 5. Periods of elevation and erosion.

REFERENCES. Dana, Geology, pp. 640-641. Tarr, Elementary Physical Geography, pp. 270, 352, 391. Mill, Realm of Nature, pp. 247-248. Dryer, Physical Geography, pp. 81-91.

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LECTURE III.

Glaciers.

1. Phenomenon of freezing.

(a) Water.

(6) Vapor-snow crystals. 2. Glacier ice produced by pressure.

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