Dr. Al Smits at the CSUH Biological Field Station when he was a graduate student of physiological ecology.

                                                                                                                                                                                 

Dr. Howard Cogswell teaching ornithology in the field.

Dr. Howard Cogswell's ornithology class at Audubon Canyon Ranch, Marin County, CA

                                                                                                                                                                                                 

Dr. Robert Baalman's Plant Ecology class field trip to southern California

                                                                                                                                                                                                © 2010  Callyn Yorke

 

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