Field tests using pitfall traps were conducted to test the relative attractiveness of conifer
volatiles and ethanol to Hylobius abietis (L.). Traps baited with stems of Scots pine, Pinus …

Camponotus modoc was associated with numerous species of Homoptera in Giant Forest,
Sequoia — Kings Canyon National Park, California. Ant-exclusion experiments and field …

The nonplanetary" bits and pieces" of the solar system range from dust grains smaller than
1 jA in size to chunks many kilometers across, and include asteroids, comets, meteorites, …

Field tests were conducted with Hylobius abietis (L.) in Sweden during 1982 and 1983 to
study how weevils feeding on host material affect attractivity of this host material to other H. …

Measurements of natural variations in isotopic abundance ratios of silicon are reported. A
maximum natural range of 5.3 per mil in Si 30 has been observed to date. Coexisting biotite, …

… From a thesis submitted by David A. Tilles to the University of California, Berkeley, in partial
fulfillment of the requirements for the degree of Doctor of Philosophy in entomology, June …

Factors eliciting copulatory behavior in mature maleHylobius abietis were studied in the
laboratory. Dead female weevils were sexually attractive, while dead mature males and pentane-…

Measurements of excess Ar 36 + Ar 38 (released mainly at 1200C) in magnetic concentrates
of Pacific sediments and in a dense concentrate of Greenland dust agree within an order of …

A source mechanism for the noble gases in the earth's atmosphere may be the solar-wind
bombardment of extraterrestrial dust. Calculations based on estimates of recent influx of dust …

Isotopic abundance variations of silicon in quartz and feldspar from the Rose Quartz Pegmatite
of the Pala district in Southern California are reported. All feldspar samples are enriched …