INTENDED FOR THE

INSTRUCTION AND ENTERTAINMENT

OF

YOUNG PEOPLE:

IN WHICH

THE FIRST PRINCIPLES

OF

NATURAL AND EXPERIMENTAL

PHILOSOPHY

ARE FULLY EXPLAINED.

VOL. II. OF ASTRONOMY.

Conversation, with the habit of explaining the meaning of words, and
the structure of common domestic implements, to children, is the sure
and effectual means of preparing the mind for the acquirement of science.
Edgeworth's Practical Education.

BY THE REV. J. JOYCE.

A NEW EDITION,

WITH NUMEROUS CUTS, AND OTHER ADDITIONS

AND IMPROVEMENTS.

LONDON: PRINTED FOR BALDWIN AND CRADOCK;
AND R. HUNTer, st. paul's CHURCH-YARD.

BODL LIBR 30.MAY 1916 OXFORD

C. Baldwin, Printer, New Bridge-street, London.

III. Of the Fixed Stars, and Ecliptic....... 20

IV. Of the Ephemeris.....

V. Of the Solar System...

VI. Of the Figure of the Earth...................

32

47

58

VII. Of the Diurnal Motion of the Earth....

69

VIII. Of Day and Night.........................

82

IX. Of the Annual Motion of the Earth....

92

XIII. Of Leap-Year, and the Old and New

CHARLES. The delay occasioned by our long walk has afforded us one of the most brilliant views of our heavens that I ever saw.

James. It is uncommonly clear; and the longer I keep my eyes fixed upwards, the more stars seem to appear: how is it possible to number these stars? and yet I have heard that they are numbered, and even arranged in catalogues according to their apparent magnitude. Pray, sir,