U. S. DEPARTMENT OF AGRICULTURE. 
4 « 
DIVISION OF MIOKOSCOPY. 
AVI Til 
DIRECTIONS FOR THEIR IDENTIFICATION AND 
THEIR PREPARATION AS FOOD. 
BY 
THOMAS TAYLOR, M. H., 
CHIEF OF THE DIVISION OF MICROSCOPY. 
REVISED AND 
REPRINTED BY 
AGRICULTURE, 
authority of the secretary of 
WITH AN APPENDIX. 
WASHINGTON: 
GOVERNMENT PRINTING OFFICE. 
1893 . 
