vol. XXX 
APRIL 15, 1923 
No. 8 
JOURNAL OP 
AGRICULTURAL 
* s'? 
CONTENTS 
The Use of Liability Ratings in Planning Forest Fire Protection - 
W. N. SPARHAWK 
Ascaridia lineata, A Parasite of Chickens in the United States 
BENJAMIN SCHWARTZ 
Some Laboratory Methods for Parasitological Investigations - 
MAURICE C. HALL and ELOISE B. CRAM 
Some Lepidopterous Larvae Resembling the European Corn Borer 
WILLIAM O. ELLIS 
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{IM f 
m 
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Y • . 
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Page 
693 
763 
773 
777 
PUBLISHED BY AUTHORITY OF THE SECRETARY OF AGRICULTURE 
WITH THE COOPERATION OF THE ASSOCIATION 
OF LAND-GRANT COLLEGES 
WASHINGTON, D. C. 
GOVERNMENT PRINTING OFFICE 
