LECTURES

ON

EXPERIMENTAL PHILOSOPHY,

&c. &c.

LONDON:

PRINTED BY THOMAS DAVISON, WHITEFRIARS.

EXPERIMENTAL PHILOSOPHY,

ON

ASTRONOMY,

AND

CHEMISTRY;

For the Use of Students and Young Persons.

INTENDED CHIEFLY

BY G. GREGORY, D.D.

LATE VICAR OF WEST HAM; DOMESTIC CHAPLAIN TO THE LORD
BISHOP OF LLANDAFF; AND AUTHOR OF THE ECONOMY
OF NATURE, &c. &c.

IN TWO VOLUMES.

VOL. II.

SECOND EDITION, CORRECTED AND IMPROVED.

LONDON:

PRINTED FOR LONGMAN, HURST, REES, ORME, AND BROWN;
BALDWIN, CRADOCK, AND JOY; SCATCHERD AND

LETTERMAN; G. AND W. B. WHITTAKER;

AND

SHERWOOD, NEELY, AND JONES.

1820.

CONTENTS

Eclipses

ΤΟ

VOL. II.

LECTURE XXIII.

Page

The Vicissitudes of the Seasons, and the Divisions of

Time

LECTURE XXIV.

CHEMISTRY.

LECTURE XXV.

Chemistry.-General Principles

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