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Show ACKNOWLEDGMENTS Great are the cordial thanks lowe to my Almighty, who gave me the excellent come and study at a friendly institution, the University of Utah, in to opportunity friendly country, the a mentioned below as United States of well as America, and meet the many others whom space does not friendly persons permit me to mention. am very grateful to my major professor, Dr. R. V. Chamberlin, who not only all his properties, such as literature, equipment, and specimens, at my disposal, but also gave liberally of his time to direct, encourage and support me in my I put . studying. I wish to express my gratitude to all the members of my supervisory committee, Behle, Dr. Chamberlin (Chairman), Dr. Cottam, Mr. Mulaik, and Dr. Woodbury. Dr. To Dr. Chamberlin, whose criticisms improved my thesis in science and language, kindly read my manuscript and made and to other members of my committee who many helpful suggestions. I would like to acknowledge the kindness of all the members of the Research Committee, especially Dr. Christensen, Dr. Eyring (Chairman and Dean of the Graduate School) and Dr. Rees (Head of the Department of Invertebrate Zoology), in supporting me with financial aid, enabling me to further my study. Dr. Rees gave me much encouragement as well as good suggestions for my work. Deep appreciation is extended to the Chamberlin, Beeley, Mulaik, Rees, and Woodbury families. They treated me so hospitably that I feel at home in a foreign country. Especially am I indebted to the Chamberlins from whom I enjoyed the parent-like interest and sympathy so that I have had no homesickness and have been able as a result to study effectively and healthily. I wish also to extend my deep appreciation to our Uncle Sam, Dr. Chia-Hua Chu and Dr. Hsiang-Hsi K'ung, who kindly gave me financial aid for publication. With out their kindness and help this manuscript could not so soon have gone to press. Last, but not least, I thaak heartily my parents, Dr. and Mrs. M. D. Chang-Wang, and my wife Yonge- Mei N ee- Wang, who not only supported me and encouraged me but they also kept our home well. Being thus spared the troubles from that source, I have been able to concentrate upon my study. iii |
