The use of backscattered gamma rays for evaluating defects in logs and trees /

"Contract No. AT-(40-1)-2513."

Departure curves and electrode factors for the determination of true formation resistivity from electric logs obtained with roller type electrodes in air drilled bore holes not containing fluid /

"Contract No. AT(05-1)-725."

Records of wells, drillers' logs, water analyses, and maps showing location of wells. Works Progress Administration ground water survey project. Analyses made, maps prepared, data assembled and report mimeographed by Works Progress Administration ...

Title varies.

Tables for estimating board foot volume of trees in 32 foot logs,

Mode of access: Internet.

The steaming of Wigan Arley coal in vertical gas retorts.

At head of title: Department of scientific and industrial research. Fuel research board ...

Effect of physical factors in the ecology of certain insects in logs /

Thesis (Ph. D.)--University of Minnesota, 1921.

Small boy, Harold Ward, with loggers atop flatbed railroad car containing newly cut logs near Deward, Michigan

On verso: A few nice ones with Harold on the car...Part of the logs out of the largest pine tree cut by Ward's at Deward with Harold Ward on R.R. car. Harold the grandson of David Ward and son of Willis C. Ward. Multiple prints of this image with different verso inscriptions exist

Langston Rollway. Over 15,000,000 feet of logs

Langston, Mich.