Field Museum 



of Natural History 



Bulletin 



Published since 1930 hy 



Field Museum of Natural History 



Founded 1893 



Editor/Designer: David M. Walsten 

 Staff Photographer: Ron Testa 



CONTENTS 



July/August 1989 

 Volume 60, Number 7 



EVENTS 3 



FIELD MUSEUM OF NATURAL HISTORY 

 BIENNIAL REPORT FOR 1987-1988 . . . 



Board OF Trustees 



Robert A. Pritzker 



Chairman 

 Mrs. T. Sranron Armour 

 Robert O. Bass 

 Gordon Bent 

 Mrs. Philip D. BkKklll 

 Willard L.Boyd. 



President 

 Robert D. Cadieux 

 Woriey H.Clark 

 James W. Compton 

 Frank W. Considine 

 Thomas E. Donnelley II 

 Thomas J. Everman 

 Marshall Field 

 RonaldJ. Gidwit: 

 Wayne E. Hedien 

 Clarence E. Johnson 

 Richard M. Jones 

 John James Kinsella 

 Robert D. Kolar 

 William Kunkler III 

 Hugo J. Melvoin 

 Leo F. Mullin 

 James J . O'Connor 



Mrs. James j. O'Connor 

 James H. Ransom 

 John S. Runnells 

 Patrick G. Ryan 

 William L. Searle 

 Mrs. Thetxlore D. Tieken 

 E. Leland Webber 

 Blaine J. Yarrington 



LIFE Trustees 



Harry O. Bercher 

 Bowen Blair 

 Stanton R. Cook 

 Mrs. Edwin J. DeCosta 

 William R. Dickinst>n. Jr. 

 Mrs. David W. Grainyer 

 Clifford C. Gregg 

 Mrs. Robert S. Hartman 

 Edward Byron Smith 

 Robert H. Strot: 

 John W. Sullivan 



Field Musfum of .K'atural History- BulUtin (USPS S9i-'»0) is published monihly. exccfK combined July August issue, by Field Museum or Natural History. Rooscvcli Road at Lake Shtwe Drive. Chicago. JL 60605-24%. Copynght ©1989 Field 

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