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Volume 7, Number 6
Sept. 1932

National Park Service
Grand Canyon National Park
Grand Canyon Natural
History Association

This publication is issued monthly for the purpose of recording observations and of making known the results of research and scientific investigation in the Grand Canyon region in the fields of natural history, history and related subjects. It is published by the Natural History Association for the Grand Canyon National Park. Membership in this Association is $1.00 per year and includes a subscription to Nature Notes. Additional copies of Nature Notes may be obtained at 10¢ each by addressing The Grand Canyon Natural History Association, Grand Canyon, Arizona.

M. R. Tillotson,
Edwin D. McKee,
Park Naturalist

Table of Contents

A Baffling Piece of Plate Glass
     Hugh H. Waesche, Ranger Naturalist

Insect Notes
     Clyde C. Searl, Ranger Naturalist

The 1933 "Pine Nut" Crop
     A. Russell Croft, Ranger Naturalist

Herpetological Problems at Grand Canyon National Park
     Charles M. Bogert, Ranger Naturalist

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