CONTENTS 
OVERVIEW... 1 
REFERENCE LIBRARY . 3 
PAPERS SINCE 1979 . 3 
SELECTED ACTIVITIES IN 1980 . 4 
PERSONNEL . 6 
ACCESSIONS . 7 
INDEX OF NEOPLASTIC AND HYPERPLASTIC LESIONS - 
ANIMAL GROUP - AND RTLA NUMBER. 24 
PHYLOGENETIC INDEX . 26 
INDEX OF SPECIMENS BY SCIENTIFIC AND 
COMMON NAMES . 29 
CONTRIBUTORS . 34 
TEAR OUT ACCESSION SHEET . Last page 
Smithsonian Institution 
Washington, D. C. 
1981 
