The Twenty-ninth Day : accommodating human needs and numbers to the earth's resources

By - Brown Lester R.

Floor - Floor 1

Published - W.W. Norton & Company, New York, 1978

ISBN 10 - 0393056732

ISBN 13 - 9780393056730

Book Status - 1 Qnty Available with us.

Subject - Conservation of natural resources

Shelf No - 13

Call Number - 301.31 BRO

Physical Description - xiii, 363 pages ; 22 cm

Notes - Includes index

Book Information

A lily pond, so the French riddle goes, contains a single leaf. Each day the number of leaves doubles--two leaves the second day, four the third, eight the fourth, and so on. Question: If the pond is completely full on the thirtieth day, when is it half full? Answer: On the Twenty-ninth day.

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