[Dickinson College laboratory equipment]

[Young man seated next to a Holtz electrostatic influence machine, Dickinson College]

[Display of antique electrical apparatus, Dickinson College]

[Electrostatic machines (?), Dickinson College]

[Holtz machine emitting sparks]

[Holtz machine emitting sparks]

Passaic Falls, Patterson N. J.

Old West, Dickinson College

[St. John's Episcopal Church, Carlisle, Pa]

W. Dickinson College, Carlisle, Pa., spring 1875

[Holtz machine]

[Holtz machine]

[Holtz machine with vertical rod]

[Steam engine]

[1 1/4 bolt cutting machine]

9" shaping mach.

18" hoisting machine

Patent bolt and nut screwing machine

[Holtz machine emitting sparks, Dickinson College]

[Shelves holding scientific equipment, Dickinson College]

Group at Altoona

Group taken at W.H.W.'s residence in Altoona, Pa.

Nail factory, Duncannon, Pa., from the w.

Penna R.R. bridge across the Susquehanna from west side

Penna R.R. bridge across the Susquehanna River from the w.

Penna. R.R. depot., Harrisburg, Pa.

Philad. & Reading R.R. depot, Harrisburg, Pa.

Scene along railroad line

[Collection of scientific equipment at Dickinson College, including Dr. Joseph Priestly's burning lens and air gun and Professor Walter R. Johnson's rotascope]

[Holtz machine]