S. F. BAIRD. 
MANUSCRIPT NOTES 
FROM MY 
O K 
ILLUSTRATIONS OF INSECTS, 
NATIVE AND FOREIGN. 
DIPTER A, 
OR TWO-WINGED FLIES. 
jBy yOWNEND pLOVER, ^ASHINGTON, 
P. p. 
Entered according ta Act of Congress in the year 1874, hy Teronend G/mer, 
In the Office 0/ the Librarian 0/ Congress at liushington. 
WASHINGTON: 
1874. 
