The Pacific Coast variety of Douglas-fir was investigated.
The samples were tested using both forced and free vibrations. Transverse
vibrations were introduced by excitations on the side of the
samples. Forced vibrations were applied from 5000 to 0 hertz by a
vibration generator, and free vibrations were initiated by a...
The character of the primary seismic wave in the
range of distances between 100 and 600 km is affected by
such factors as the nature of the source, exponential
attenuation, crustal structure, type of wave propagation,
recording site geology and instrument response. The
first arrivals from the GNOME and SHOAL...
This investigation has analyzed and described the impact of
place on one of man's activities -- the production of sugar beet seed.
It is apparent that in this activity man's relationship to the earth is
especially close and dependent upon a number of factors. These
are localizing factors. Sugar beets...
Purpose of the Study:
The purposes of this investigation were threefold:
1. To determine the areas of commonality existing in known
juvenile delinquents in Umatilla and Union Counties of Oregon.
2. To devise a test that would aid in identifying delinquency
tendencies in preadolescent children on the basis of areas...
A cytogeographical study was made of populations of tetraploid
(n=18) and hexaploid (n=27) Achillea millefolium (Compositae-
Anthemideae) from the Pacific Coast states. There is a complex
distributional pattern, involving overlapping ranges, mixed populations,
migration of one form into areas occuplied by the other,
pentaploid hybrids, and septaploid and octoploid plants....
Developmental series of Rana pretiosa (110 specimens), R.
cascadae (100 specimens) and R. aurora (115 specimens) were bone
stained and cleared in glycerin. The growth and developmental patterns
of the skull and selected bones were followed from the first
appearance of bone through adult stages. The sequential appearance
of the...
The purpose of this investigation was to evaluate the effects of
a six week residential summer program of differential education for
gifted high school students. It was designed to determine the extent
to which participants in the program were proficient in aspects of
critical and creative thinking, and in the...