Analysis of 21 post-burn cores taken from the Hanna IV UCG site allows 96 m (315 ft) of overburden to be subdivided into four local stratigraphic units. The 7.6 m (25 ft) thick Hanna No. 1 coal seam is overlain by a laterally discontinuous, 3.3 m (11 ft) thick shaley mudstone (Unit A') in part of the Hanna IV site. A more widespread, 30 m (90 ft) thick well-indurated sandstone (Unit A) overlies the A' unit. Unit A is the roof rock for both of the Hanna IV cavities. Overlying Unit A is a 33 m (108 ft) thick sequence of mudstone and claystone (Unit B), and the uppermost unit at the Hanna IV site (Unit C) is a coarse-grained sandstone that ranges in thickness from 40 to 67 m (131 to 220 ft). Two elliptical cavities were formed during the two phases of the Hanna IV experiment. The larger cavity, Hanna IVa, is 45 x 15 m in plan and has a maximum height of 18 m (59 ft) from the base of the coal seam to the top of the cavity; the Hanna IVb cavity is 40 x 15 m in plan and has a maximum height of …

A report by the Office of Technology Assessment (OTA) that is a "background to an analysis of Federal policies regarding the medical devices industry" (p. 4).

A case study by the Office of Technology Assessment (OTA) that "focuses on amputees and the social policies that bear on their use of the Boston Elbow" (p. 3).

A study by the Office of Technology Assessment (OTA) that covers "the essential technical issues surrounding the selection and acquisition of infrastructure in space" (p. iii).

A case study by the Office of Technology Assessment (OTA) that presents "what is currently known about ICUs in terms of the distribution of ICU beds, the costs of maintaining ICUs, the characteristics of ICU patients and the outcome of ICU care" (p. 3).

An assessment by the Office of Technology Assessment (OTA) that "focuses on how Federal Government policies affect innovations in wheelchair characteristics" (p. 3).

An assessment by the Office of Technology Assessment (OTA) that "reviews wood manufacturing technologies that might be used to extend the timber resource through improved utilization and explores the prospects for changes in the way wood products are manufactured and used" (Abstract).

Monthly compilation of statistics for oil and wells in Texas, documenting the number completed, drilled, and plugged.

Monthly report detailing all Texas automobile, pickup, and motorcycle theft data, broken down into tabular lists according to various criteria.

Compilation of report abstracts for publications in the Office of Technology Assessment "Health Technology Case Studies Series" which provide background information on technologies related to healthcare and medicine.

Compilation of monthly reports from departments in the city of San Antonio, Texas providing statistics, project updates, and other information about services and activities.

This report discusses questions dealing with the number of homeless Americans as well as trends in society's attitudes toward such people. The incidence of mental illness and the appropriateness, or lack thereof, of deinstitutionalization for such patients is another aspect of the problem which is covered in this packet. A CRS report gives an overview of the situation and of the Federal response.

Monthly report providing tabular statistical information about motor vehicle accidents in Texas during 1984, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Monthly report providing tabular statistical information about motor vehicle accidents in rural areas of Texas during 1984, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.