Dentist Laboratory, articulating Machines.
Dentist Laboratory, locker Room.
Hunter College, laboratory.
Pavell Laboratories, interior view.
New York Hospital. Biological Laboratory.
Lying-in Hospital, laboratory interior.
Lying-In Hospital, Emma Hartley Memorial Research Laboratory.
Harlem Hospital, Biological Laboratory, interior.
Dentist Laboratory, melting and Soldering furnaces.
Dentist Laboratory, buffing and grinding machines.
Gas laboratory
