The thesis was completed in 1982, long before the internet. Only a few hard copies are available yet workers in Italy, Iran, China and the Netherlands have cited the work in the past ten years. It seems the thesis still has value after nearly forty years. As a result, I felt it might be useful to make it available to a wider audience. Admittedly the taxonomy is woefully out of date but the illustrations, descriptions and keys may still be useful.
There are several people/institutions who helped make this possible. Early discussions with Dr. David Malloch, Dr. James Scott and Dr. Wendy Untereiner got the process started. Dr. James Scott and his colleagues at Sporometrics Labs digitized the thesis. Mr Dale Nicholson (Kwik Kopy Productions) incorporated the hyperlinks and Heather Ogg (Techno Media) helped design the website.
I have attempted to faithfully reproduce the original thesis however, undoubtedly, numerous errors and omissions have crept in through the various iterations. For this, I assume all responsibility.