CONTENTS 
OVERVIEW . 1 
REFERENCE LIBRARY . 4 
PAPERS SINCE 1980 . 4 
SELECTED ACTIVITIES IN 1981 . 6 
PERSONNEL .. 7 
ACCESSIONS .. 9 
INDEX OF NEOPLASTIC AND HYPERPLASTIC LESIONS - 
ANIMAL GROUP - AND RTLA NUMBER. 37 
PHYLOGENETIC INDEX . 40 
INDEX OF SPECIMENS BY SCIENTIFIC AND 
COMMON NAMES . 43 
CONTRIBUTORS . 48 
TEAR OUT ACCESSION SHEET . Last page 
Smithsonian Institution 
Washington, D. C. 
1982 
