Bulletin of the Museum of Comparative Zoölogy 
AT HARVARD COLLEGE. 
Vou. XXIX. No. 5. 
THE DEVELOPMENT OF THE WING SCALES AND THEIR 
PIGMENT IN BUTTERFLIES AND MOTHS. 
By ALFRED GOLDSBOROUGH MAYER. 
WITH SEVEN PLATES. 
CAMBRIDGE, MASS., U.S.A.: 
PRINTED FOR THE MUSEUM. 
Jung, 1896. 
