Grand Canyon: rephotography

[John Nelson]

Thurs 13 Feb 130pm

Friends:

    I've just come across a book that might be of interest to those
of you in western N. America--

    Webb, Robert H. GRAND CANYON--A CENTURY OF CHANGE. Univ . of
    Ariona Press, Tucson. 1996.

    Fascinating comparative rephotography, plus treatment of
vegetation dynamics (e.g. Ferocactus cylindraceus vs. Encelia
farinosa, p. 88).

    John












John B. Nelson
Curator of the Herbarium (USCH)
Department of Biological Sciences
University of South Carolina
Columbia SC 29208

nelson at biol.sc.edu
803-777-8196 phone
803-777-4002 fax