Volume 23(1)

Journal
of the
Arizona-Nevada Academy of Science

CONTENTS

Changes in fish communities following concrete lining
    of the Coachella Canal, Southeastern California.
    Gordon Mueller, Gary Bryant, and Tom Burke 		1
Reaction of cotton cultivars and lines to cotton leaf crumple virus.
    F. Douglas Wilson, Judith K Brown, and George D. Butler, Jr. 		7
A study of the human anatomy and physiology course in
    Arizona's postsecondary educational institutions.
    Paul R. Holmgren 		11
Spawing gravels of rainbow trout in Glen and Grand Canyons, Arizona.
    G. Mathias Kondolf, Stuart S. Cook, Henry R. Maddux,and William R. Persons 		19
A comparison of duration magnitude to local magnitude for seismic
    events recorded in northern Arizona.
    D. S. Braumbaugh 		29
Additions to the aquatic flora of Arizona.
    Jon M. Ricketson 		33
Additions to Arizona flora-range extensions of noxious weeds, plant distribution records
    established by ADOT/USFS and the location for Arizona Lewisia rediviva Pursh.
    Clark G. Saack 		35
Irrigation effects on root and starch production and water use
    of the potential domesticate, coyote gourd.
    John M. Nelson, Terry L. McGriff, and Joseph C. Scheerens 		39
Behavior of cotton leafperforator (Lepidoptera: Lyonethiidae)
    on wild and cultivated cotton.
    F. Douglas Wilson and Jayne L. Szaro 		45
High-resolution nightime temperature patterns in Phoenix.
    Robert C. Balling, Jr. and Sandra W. Brazel 		49
Book Reviewes
    A Handbook of Mexican Roadside Flora
    The Last Grizzly and Other Southwestern Bear Stories
 10
31

1989
Published by the
Arizona-Nevada Academy of Science