Photographs from the U.S. Geological Survey Photographic Library  earthquakes, volcanoes, geologic hazards, and other phenomena  [computer file] 
by Joseph K. McGregor and Carl Abston. 
 - [Reston, Va.]  [Denver, Colo.  The Survey  USGS Branch of Distribution, Federal Center]  1992. 
 - 1 computer laser optical disk  col.  4 3/4 in. 
 - U.S. Geological Survey digital data series  DDS-8 .
<br/><br/> Title from container insert.  Shipping list no.: 92-0032-E.  Disk characteristics: CD-ROM.  Not copy-protected.  ISO 9660 format. 
<br/><br/> Contains 560 scanned color and black-and-white images from photographs held in the Library's collection. Images scanned using 120- to 360-dots-per-inch resolution. Each is approximately 1.2 megabytes (1200 by 1000 pixels) and is stored in a PCX format. High-quality prints and slides are available. 
<br/><br/><br/>System requirements: IBM or compatible personal computer; 640 kb RAM; MS- or PC-DOS 5.0 or later; hard disk drive; SVGA color monitor and SVGA graphics card; Microsoft MSCDEX version 2.1 or later; CD-ROM drive with ISO 9660 software driver. 
<br/><br/><label>Subjects--Corporate Names: </label><br/>U.S. Geological Survey Photographic Library.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earthquakes--Pictorial works.<br/>CD-ROM Fed. Doc.<br/>Hazardous geographic environments--Pictorial works.<br/>Volcanoes--Pictorial works.
<br/><br/><label>GPO Item No.: </label>0621-K 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 19.121:8