TIME AND TIDE,

A Romance of the Moon.

Being Two Lectures Delivered

in the Theatre of the London Institution,

on the Afternoons of November 19 and 26, 1888.

by

SIR ROBERT S. BALL, LL.D., F.R.S.,

Royal Astronomer of Ireland.

Published under the Direction of the Committee of

General Literature and Education Appointed

by the Society for Promoting Christian

Knowledge.

London:

Society for Promoting Christian Knowledge,

Northumberland Avenue, W.C.; 43, Queen Victoria Street, E.C.

Brighton: 135, North Street.

New York: E. & J. B. Young & Co.

[Illustration: VIEW OF THE MOON TWO DAYS AFTER FIRST QUARTER. From a

photograph by Mr. LEWIS M. RUTHERFORD.

_Frontispiece._]

TO

The Members of the London Institution

I DEDICATE

THIS LITTLE BOOK.

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