med, and the house next to it spun
around like a top.

_Courtesy of U. S. Weather Bureau._]

[Illustration: IN THE PATH OF THE LIGHTNING.

_Courtesy of U.S. Weather Bureau._]

[Illustration: IN THE PATH OF THE TORNADO.

A farm-house, with farm buildings in a copse of trees stood here; the
buggy, after a flight through the air, was dropped, little injured.

_Courtesy of T. B. Jennings, U. S. Weather Bureau, Topeka, Kans._]

[Illustration: FACING A CLIMB ON SHOW-SHOES.]

[Illustration: TWENTY-FIVE FOOT DRIFT A MILE LONG.]

[Illustration: FOREST RANGER IN IDAHO.

[Illustration: OBSERVER AMONG THE QUAKING ASPENS.

SNOW SURVEY WORK.

_Courtesy of U. S. Weather Bureau and of J. Cecil Alter._]

[Illustration: NO PEAK TOO LOFTY FOR A WEATHER STATION.

Taking recording instruments up a mountainside where there has never
been a trail.

_Copyright by J. Cecil Alter, U. S. Weather Bureau, Cheyenne, Wyo._]

[Illustration: WALL SUN-DIAL AT SANTA BARBARA, CAL., ON OLD SPANISH
MISSION.]

[Illustration: SUN-DIAL AT HILLSIDE, N.Y., DUPLICATE OF THAT OF SIR
WALTER SCOTT AT ABBOTSFORD.]

[Illustration: THE FIRST LINE OF DEFENCE AGAINST THE TEMPEST.

Headquarters of the U. S. Weather Bureau, at Washington, D. C., where
every wind and cloud that passes over the United States is chronicled
and watched; the greatest forecast office in the world.

_Courtesy of U. S. Weather Bureau._]

[Illustration: SOLAR HALO SEEN IN THE UNITED STATES.

This halo was seen over a wide area, and was especially bright in
Virginia.

_Courtesy of Scientific American._]

[Illustration: SOLAR HALO SEEN IN RUSSIA.

(By permission from Camille Flammarion's "Meteorologie.")]

[Illustration: THE DUST THAT MAKES RED SUNSETS.

The volcanic eruption of Lassen Peak, Cal., on October 6, 1915, taken at
intervals, the first three photos five minutes apart, the fourth, ten
minutes later, showing the beginning of the second cloud.

_Copyright by Chester Mullen. Courtesy of U. S. Weather Bureau._]

[Illustration: AN ARMY DESTROYED BY WEATHER.

Napoleon deserting his troops during the retreat from Moscow, when the
emperor defied the winter, and left a quarter of a million men dead on
the snows of Russia.]

[Illustration: _Cirrus Implexus_

_Alto-Strato-Cumulus_

TYPES OF UPPER CLOUDS.]

[Illustration: _Cumulus_

_Stratus_

TYPES OF LOWER CLOUDS.]

[Illustration: _Cumulo-Nimbus_