PRACTICAL INSTRUCTIONS TO THE NAVIGATOR, TO ENABLE HIM APPROX-
IMATELY TO CALCULATE THE COMING CHANGES OF THE

WIND AND WEATHER, FOR ANY GIVEN DAY,

AND FOR ANY PART OF THE OCEAN.

BY T. BASSNETT.

Η δε μεσοτης εν πασιν ασφαλεςέρα.

NEW YORK:

D. APPLETON & COMPANY,

346 & 348 BROADWAY,

AND 16 LITTLE BRITAIN, LONDON.

1854.

KD 5 2919

HARVARD COLLEGE LIBRARY

GIFT OF

EDWIN R. FAIRCHILD

JULY 12, 1924

Entered, according to Act of Congress, in the year 1853, by
T. BASSNETT,

In the Clerk's Office of the Southern District of New York.

.

CONTENTS.

SECTION FIRST.

Present State of the Science of Meteorology-Primordial Con-

dition of the Solar System-Theory of Gravitation the great

key of Nature-Bessell's doubts of its perfect adequacy-the

Newtonian Vacuum: its difficulties-Nature of the element

called Ether-The Medium of Space and the Electric Fluid-

Ponderosity of Matter-Dynamical law of Equilibrium—Spe-

cific heat and its relation to space-A Plenum not opposed to

Gravitation-The medium of space in motion-Formation of

Vortices-A new principle developed-Elements of the prob-

lem-Hutton's theory of the production of rain-Indications

of change and the cause-Action of the Ethereal Current-

Physical process of Atmospheric Derangement-Redfield's the-

ory of Storms: its difficulties-All storms are of brief dura-

tion and limited extent.

13

SECTION SECOND.

Mechanical action of the Moon-The Moon's mass-Axis of the

Terral Vortex affected by the Moon: its inclination and posi-

tion: its displacement—An example of the principle-Correc-

tions necessary-Milwaukie storm-New York storm-Ottawa

storm-Liverpool storm-Names and recurring order of the

storm-producing agents-Record of the weather-Second New

York storm.

. 58