From Abstract: "This report is one of a sequence of quarterly reports, each designed to up-date its predecessor beginning with HASL-42, "Environmental Contamination from Weapon Tests." Herein are reported data which have accrued since HASL-51. In particular, the levels of strontium 90 in fallout, milk, tap water, vegetation, and foods are given, based on data available from November 1, 1958 to January 30, 1959."

Patent for a picture-hook that improves on a commonly used picture-hook that easily becomes dislodged. The patented hook fits over molding with spurs that go into the molding.

Patent for an improved dredging apparatus "and it consists in combining with the well known bucket chain form of excavator a suction pipe provided with a hopper and a crushing or breaking device so that the material being deposited in the hopper by the continuously moving buckets will be carried under the action of gravity to the breaking or crushing device and thence through a suction pipe and pump and delivery pipe to the place of deposit" (lines 9-18).

From Introduction: "The results of varying only Reynolds number for several equivalent tip speeds are presented and probable reasons for the apparent variation of adiabatic efficiency with inlet temperature are discussed."

From Introduction: "Experimental investigations (reference 1) have shown that in some cases the thrust can be more than doubled by means of tail-pipe burning. A comparison is made of a standard turbojet engine, whose thrust is augmented by tail-pipe burning, and a ram-jet engine. The performance characteristics for the ram-jet engine were computed entirely from theoretical considerations and on the assumption that the burner-inlet velocity was constant."

From Introduction: "The research program included clean-up tests (unpublished data) and stability and control tests (reference 1) made in the NACA Langley full-scale tunnel. An investigation of the aerodynamic characteristics of the power-plant installation in the Cleveland altitude wind tunnel is discussed in this report."

Report issued by the Bureau of Mines over investigations conducted on the 1944 fire at the East Ohio Gas Company. Descriptions of the plant, and construction of the gas tanks are listed. A detailed description of the disaster, and its aftermath are also presented. This report includes tables, maps, illustrations, and photographs.

Patent for certain new and useful improvment

This report presents the results of ground water, stream water, and stream sediment reconnaissance in Illinois, Indiana, Kentucky, Tennessee, and Ohio.

A report regarding geophysical investigations of the Western Ohio-Indiana Region

Tabulated data presenting the results of elemental analyses for stream sediment samples taken from 1214 data collection sites in the state of Ohio. Results of Oak Ridge National Laboratory's Elemental Determination-Methods and Detection Limits are given in ppm (see page 22 of report).

"This appendix contains phase arrival information for local and near-regional events which have been well recorded by the Anna Seismic Network." (p. B1)

"The appendix contains daily and monthly tabulations of running time for each station" monitoring earthquake activity in the Western Ohio - Indiana region. (p. A1)