APPENDICES 
ACKNOWLEDGMENTS 
The following persons have made essential contributions 
without which this study could not have been pursued to its 
present degree of completion : 
The President and Trustees, the Dean of the Graduate School, and 
the Zoology faculty of Indiana University, who are responsible for my 
part-time appointment as an Associate of the Waterman Institute from 
1925 to date, and who have appropriated funds for collections, technical 
assistance, and other expenses of these investigations. 
Harvard University, and particularly Dr. William Morton Wheeler 
of that institution, which granted the Sheldon Travelling Fellowship 
under which the initial collections were made for this study in 1919- 
1920. 
The Trustees of the Elizabeth Thompson Science Fund, who awarded 
Grant No. 259, made in 1924, toward the expenses of this study. 
The Board of Directors of the Bache Fund, who, in 1924, made 
their Grant No. 255 toward this study. 
My wife, Clara McMillen, who has contributed encouragement, ad- 
vice, material, and editorial assistance. 
Dr. Fernandus Payne, Head of the Zoology Department and Dean 
of the Graduate School of Indiana University, who has given material, 
assistance, encouragement, and critical aid in genetic interpretations 
of the problems involved. 
Dr. G. W. D. Hamlett, of the Zoology Department of Indiana Uni- 
versity, who has offered criticisms of the interpretations, especially of 
the genetic interpretations, of the biologic data. 
Dr. B. J. Vos, of the Department of German at Indiana University, 
who has verified the German translations published in this study. 
Dr. R. H. Coon, of the Department of Latin at Indiana University, 
who has verified the Latin translations published in this study. 
Dr. Paul Weatherwax, of the Department of Botany at Indiana 
University, who has helped in interpretations of some botanical data 
bearing on this genus. 
Dr. C. L. Malott and Dr. J. W. Beede, of the Department of Geology 
at Indiana University, who have criticized the geologic data used in 
the phylogenetic interpretations of Cynips. 
The several curators and others of the staffs at the Museums which 
have made Cynips material available: especially S. A. Rohwer at the 
U.S. National Museum, Nathan Banks at the Museum of Comparative 
Zoology, E. T. Cresson, Jr., at the Philadelphia Academy of Natural 
Sciences, F. E. Lutz at the American Museum of Natural History, 
Isabel McCracken at Stanford University, W. J. Gerhart at the Field 
Museum, C. A. Johnson at the Boston Society of Natural History, E. P. 
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