Published August 1943. 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
To obtain data on the decomposition of the forest floor, a battery operated electrolytic respirometer was developed making it possible to measure CO₂ evolution from field moist forest floor samples in situ independent of root respiration. Banks of four respirometers powered by two 12-volt batteries were installed in three old...
The communicative behavior of five species and subspecies of
Tropisternus Solier (Coleoptera: Hydrophilidae) was studied. These
aquatic beetles have stress and calling chirps (both sexes), a second
male calling signal (one species), a single male courtship sound
(usually), a male copulatory sound, and a female aggressive rejection
buzz (three species)....
The GALAXY computer is a large, high speed, general
purpose, digital computer intended to be used for solving
scientific problems. It requires a random access memory
system of 16,384 words of 59 bits each with a cycle time
of one microsecond or less. A memory system capable of
meeting these...
When stratification is employed to reduce the variance of an
estimate of the population mean, and the population does not possess an
a priori partitioning, the degree of reduction provided is affected by
the method of allocation, by the number of strata, and by the choice of
the stratum boundaries....
The merits of fertilizing warmwater fish ponds with dry organic manure were studied from October, 1964 to November, 1965 using two experimental ponds in the Willamette Valley. One pond (pond II) was fertilized with urea and single superphosphate and the other (pond III) was fertilized with dried manure as well...