APRIL 1, 1925 
No. 7 
A 
bC\no.~7 
JOURNAL OF 
AGRICULTURAL 
RESEARC 
- mn >: 
CONTENTS 
Relation of Weather Conditions to the Spread of White Pine Blister Rust in the 
Pacific Northwest ----- - -- -- -- - 595 
L. H. PENNINGTON 
The Construction of Taper Curves 
609 
FREDERICK S. BAKER 
Psilocybe as a Fermenting Agent in Organic Debris - - - - - - - 625 
CHARLES THOM and ELBERT C. LATHROP 
Relative Susceptibility of Citrus Varieties to Attack by Gloeosporium limetticolum 
(Clausen) - -- -- -- -- -- - - 629 
HARRY R. FULTON 
Reforestation by Seed Sowing in the Northern Rocky Mountains - - - - 637 
W. G. WAHLENBERG 
Two Imported Egg Parasites of the Gipsy Moth, Anastatus bifasciatus Fonsc. and 
Schedius kuvanae Howard - -- -- -- -- -- 643 
S. S. CROSSMAN 
New Nematodes from North American Mammals ------- 577 
EDWARD A. CHAPIN 
Further Investigations of Infectious Equine Anemia in Nevada - - - - $ 83 , 
LEWIS H. WRIGHT 
PUBLISHED BY AUTHORITY OF THE SECRETARY OF AGRICULTURE 
WITH THE COOPERATION OF THE ASSOCIATION 
OF LAND-GRANT COLLEGES 
WASHINGTON, D. C. 
GOVERNMENT PRINTING OFFICE 
1925 
