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ACKNOWLEDGMENTS
Many people have been generous with their co-operation and assistance in
the preparation of this book. I would especially like to thank Dr. A. H. Smith
of the University of Michigan who has read much of the manuscript, supplied
some of the photographs, and made many helpful suggestions. Mrs. Sheila C.
Thomson, who was formerly employed in this section, gave invaluable assist-
ance during the early stages of preparation by aiding with identifications and
preparation of descriptions. Parts of the manuscript were read by colleagues
Dr. Mildred Nobles and Dr. Ruth Macrae. My wife. Dr. Naomi Groves,
read the entire manuscript and offered many valuable suggestions. Mr. Henry
A. C. Jackson kindly gave permission to use his painting of Amanita caesarea
as a frontispiece.
Grateful acknowledgment is made to the following for permission to use
their photographs.
Dr. A. H. Smith — Figures 52, 56, 64, 79, 145, 155, 160, 198, 255, 266,
274, 302, 340, 351, 361, 388, 395.
Mr. K. A. Harrison, Kentville, N.S. — Figures 124, 156, 180, 182, 196,
262,291, 332, 335, 353.
Dr. and Mrs. B. T. Denis, Quebec City — Figures 105, 107, 110, 112,
342, 343, 344, 347, 348, 349.
Dr. Maria Pantidou, Ottawa — Figures 317, 319, 324.
National Museum of Canada — Figures 90, 91, 92, 126, 127, 128, 303,
304, 327, 328, 329, 384, 386, 387, 400.
Bio-Graphic Unit, Canada Department of Agriculture — Figures 174,
175, 396,397.