|
Leather Research Laboratory
|
|
Licht, William
|
|
Miami and Erie Canal (Ohio)
|
|
Modjeski, Ralph, 1861-1940
|
|
Norris Lake (Tenn.)
|
|
Ohio River--Pollution
|
|
Old Chemistry Building (Cincinnati, Ohio)
|
|
Osborn, Cyrus R.
|
|
Osterbrock, William C., 1893-1951
|
|
Pan American Highway System
|
|
Phosphorus
|
|
Pupin, Michael Idvorsky, 1858-1935
|
|
Roebling Suspension Bridge (Cincinnati, Ohio, and Covington, Ky.)
|
|
Schenectady (N.Y.)
|
|
Schneider, Herman, 1872-1939
|
|
Sewage disposal
|
|
Sibert, William L. (William Luther), 1860-1935
|
|
Sperry, Elmer Ambrose, 1860-1930
|
|
Sperti, George S., 1900-1991
|
|
Steinmetz, Charles Proteus, 1865-1923
|
