Standard tee rail construction for steam rail road and industrial railway track and switch work.

"Catalogue no. 21."

Report upon the plan of construction of several of the principal rail roads in the northern and middle states, and upon a railway structure for a new track on the Baltimore and Ohio Rail Road,

Sequel: Report upon the locomotive engines, and the police and management of several of the principal rail roads in the northern and middle states.

Evaluation of retroreflective markings to increase rail car conspicuity -- safety of highway-railroad grade crossings.

Transportation Systems Center, Cambridge, Mass.