United States Department of Transportation Library:Online Digital

[PsilocybeLarvae]

United States Department of Transportation Library: Online Digital Special
Collections

http://specialcollection.dotlibrary.dot.gov/

This site provides the full text of documents "of interest to Department
of Transportation (DOT) researchers and the transportation community at
large."

Includes a varied selection of material such as civil aeronautics manuals
from the 1950s, investigations of aircraft accidents (1934-1965), railroad
investigation reports (1911-1994), materials from conferences on street
and highway safety from the 1920s and 1930s, and U.S. Coast Guard circulars
back to the 1960s.

Each category of documents is searchable.