Volume 22(2)

Journal
of the
Arizona-Nevada Academy of Science

CONTENTS

Petrified wood (Araucarioxylon aruzonicum):
    proposed as Arizona's state fossil.
    Robert S. Dietz, Troy L. Péwé, and Mitchell Woodhouse 		109
Status of native fishes in Big Smoky Valley, Nevada.
    John W. Pedretti, Thomas M. Baugh, and James E. Deacon 		117
Cold air drainage and urban heating in Tucson, Arizona.
    Stephen F. Kirby and William D. Sellers 		123
Status of the Western Painted Turtle (Chrysemes picta bellii) in Arizona.
    Mark R. Jennings 		129
Book Reviewes
    Coon Mountain Controversies
    Annotated Checklist of Vascular Plants
     of Grand Canyon National Park
116
 
122

1987
Published by the
Arizona-Nevada Academy of Science