WELLS—A Survey of the Zoocecidia on Species of Hicoria
Caused by Parasites Belonging to the Eriophyidæ and
the Itonididæ (Cecidomyiidæ) 37
WEST—The Geometry of the Translated Normal Curve 60
GIBSON AND COGAN—A Preliminary List of the Jassoidea
of Missouri, with Notes on Species 71
News and Notes 79
A SURVEY OF THE ZOOCECIDIA ON SPECIES OF
HICORIA CAUSED BY PARASITES BELONGING
TO THE ERIOPHYIDÆ AND THE ITONIDIDÆ
(CECIDOMYIIDÆ).[1]