The following announcement should be of special interest to Pennsylvania Geology readers. Almost all Fourth Pennsylvania Geological Survey printed books and maps have been scanned and are now available to download as text-searchable Acrobat files. These files, as well as files for reports originally published on CD–ROMs or online, can be found through the Survey’s “Publications by Series” web page:

On May 1, the sales of Pennsylvania Geological Survey printed publications (except for Special Publication 1) will cease. Until then, formal publications that are still in print can be ordered through the website ( and the open-file publications not yet available as a download can be ordered from the Survey (
George Love
State Geologist