Field Museum 

 of Natural History 

 Bulletin 



Published by 



Field Museum of Natural History 



Founded 1893 



President: Willard L. Boyd 



Editor/ Designer: David M. Walsten 

 Production Liaison: Pamela Stearns 

 Staff Photographer: Ron Testa 



Board of Trustees 



Richard M. Jones. 



Chairman 

 Mrs. T. Stanton Armour 

 George R. Baker 

 Robert O. Bass 

 Gordon Bent 

 Mrs. Philip D. Block III 

 Willard L. Boyd 

 Robert D. Cadieux 

 Henry T. Chandler 

 Worley H. Clark 

 Frank W. Considine 

 Stanton R. Cook 

 William R. Dickinson. Jr. 

 Thomas E. Donnelley II 

 Thomas J. Eyerman 

 Marshall Field 

 Ronald J. Gidwitz 

 Clarence E. Johnson 

 John James Kinsella 

 Hugo J. Melvoin 

 Leo F. Mullin 

 Earl L. Neal 



James J. O'Connor 

 Robert A. Pritzker 

 James H. Ransom 

 John S. Runnells 

 Patrick G. Ryan 

 William L. Searle 

 Mrs. Malcolm N. Smith 

 Robert H. Strotz 

 Mrs. Theodore D. Tieken 

 E. Leland Webber 

 Blaine J. Yarrington 



Life Trustees 



Harry O. Bercher 

 Bowen Blair 

 Mrs. Edwin J. DeCosta 

 Clifford C. Gregg 

 William V. Kahler 

 William H. Mitchell 

 Edward Byron Smith 

 John W. Sullivan 

 J. Howard Wood 



The Women's Board of Field Museum 

 Presents The Treasures Ball 



The Treasures Ball, a gala black tie dinner dance, will 

 be held Friday, November 7, in Field Museum's 

 Stanley Field Hall. Reception and exhibit at 6:30, 

 dinner at 8:00. The evening will feature a special 

 exhibition of rare objects from the Field Museum 

 archives, selected by the Museum's curators. Mrs. 

 Robert C. Ferris is chairman of the gala. Vice- 

 chairman are Mrs. Donald C. Greaves and Mrs. John 

 L. Hines. Mrs. Malcolm N. Smith is president of the 

 Women's Board. Music for the party will be pro- 

 vided by the Bob Hardwick Orchestra. 



The Treasures Ball is being underwritten by 

 Sara Lee Corporation. 



For further information, please call Margaret 

 Ann Ratcliffe, Women's Board coordinator, at 322- 

 8870. 



CONTENTS 



November 1986 

 Volume 57, Number 10 



November and December Events at Field Museum 



Books 



"The Nemesis Affair, " by David M. Raup 



The New Income Tax Law and Charitable Giving 9 



by Clifford Buzard, Planning Giving Officer 



Mammals and Beetles in Costa Rica 1 1 



by James S. Ashe, Assistant Curator of Zoology , and 

 Robert M. Timm 



My Field Trip to Ulu Kinabatangan, North Borneo, 

 with Robert Inger 19 



by Chin Phui Kong 



Field Museum Launches Its $40 Million 

 Capital Campaign 



22 



Founders' Council Honors Roger Tory Peterson 25 



Field Museum Tours 



26 



COVER 



Barbara L. Clauson, field associate for the Division of Mam- 

 mals and the Division of Birds, carries her share of the load 

 during a recent expedition to Costa Rica. For more on the 

 expedition see pages 1 1-18. Photo by Robert M. Timm. 



Field Museum of Natural History Bulletin (USPS 898-940) is published monthly, except combined July/ August issue, by Field Museum of Natural History. Roosevelt Road at Lake Shore Drive. 

 Chicago, IL 60605-2496. © 1986 Field Museum of Natural History. Subscriptions: $6.00 annually. $3.00 for schools. Museum membership includes Bulletin subscription. Opinions expressed by 

 authors are their own and do not necessarily reflect the policy of Field Museum. Unsolicited manuscripts are welcome. Museum phone: (312) 922-9410. Notification of address change should 

 include address label and be sent to Membership Department. Postmaster: Please send form 3579 to Field Museum of Natural History. Roosevelt Road at Lake Shore Drive. Chicago. IL 60605 - 2496. 

 ISSN: 0015-0703 



