Description of anuran larvae with the use of staging tables is
a common practice in the study of frog life-histories, but there has
been no previous description or table of Ascaphus larvae. In comparing
Ascaphus larvae to a simplified staging table for anurans it
was found that these larvae vary...
This was an historical study which described the procedures used by a thirteen-member committee in an attempt to develop a merit-evaluation program for a middle-sized school district in Oregon.
A random sample of 33.5% of the certificated staff of School District
9 were interviewed in May, 1969. The results of...
Glyptholaspis americana (Berl.), G. confusa (Foa) and
deutonymphal Parasitus sp. were studied to determine the function
of the tritosternum. Studies were conducted on feeding, cleaning,
temperature and humidity sensitivity using intact individuals and
individuals whose tritosterna had been surgically removed.
The tritosternum was found to have two functions:
1) As...
Published March 1915. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog