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 CUMULUS, A LIGHTLY FLOATING FAIR WEATHER CLOUD.

THUNDER SHOWING CLOUD.

DEW-LADEN FLOWER AND BUDS OF THISTLE.

SECTION OF DEW-LADEN SPIDER'S WEB

SLEEPING CATERPILLAR DECORATED WITH DEW-DROPS.

DEW-LADEN GRASSHOPPER ASLEEP OF FLOWERS

The wonderfully beautiful photographs of dew and frost and also of snow crystals which we present, were furnished for this volume by Mr.Wilson A. Bentley, who is recognized as the pioneer in microphotography, and who has been employed by the government in this work for many years.