In large commercial orchards colonies of honey bees are set at regular intervals to insure adequate pollination, usually one hive per acre.
"A Living from the Land"
William B. Duryee
The inference of these early authorities regarding this process of pollination is perfectly clear from their statements.
"My Studio Neighbors"
William Hamilton Gibson
Many farmers made the extra effort to keep bees under their fruit trees because they aided pollination and produced honey from the blossoms.
"Frying Pan Farm"
Elizabeth Brown Pryor