Byron Company (New York, N.Y.)
Thomas A. Edison.

Byron Company (New York, N.Y.)
Laboratory, St. Mark's Hospital.

Byron Company (New York, N.Y.)
Mr. & Mrs. T. Edison.

Byron Company (New York, N.Y.)
Thomas Edison.

Byron Company (New York, N.Y.)
Thomas Edison.

Byron Company (New York, N.Y.)
Thomas Edison.

Byron Company (New York, N.Y.)
Thomas Edison.

Byron Company (New York, N.Y.)
Thomas Edison.

Wurts Bros. (New York, N.Y.)
Bell Avenue. Sylvania Electric Co. research labs, front view.

Babies Hospital. Bacteriological laboratory.

[Laboratory, Belleview Hospital.]

Byron Company (New York, N.Y.)
Portrait, Thomas Edison in His Laboratory, His Wife and Son.

Byron Company (New York, N.Y.)
Mess'rs. Parke, Davis & Co., New York.

Byron Company (New York, N.Y.)
Schools, Convent of the Sacred Heart.

Byron Company (New York, N.Y.)
Carl Schultz, Mineral Water Mfg.

Byron Company (New York, N.Y.)
Carl Schultz, Mineral Water Mfg.

Byron Company (New York, N.Y.)
[College of Physicians & Surgeons.]

Byron Company (New York, N.Y.)
College of Physicians & Surgeons.

Byron Company (New York, N.Y.)
College of Physicians & Surgeons.

Byron Company (New York, N.Y.)
[College of Physicians & Surgeons.]

Byron Company (New York, N.Y.)
College, College of Physicians & Surgeons, 59th St., 9 & 10 Aves.

Byron Company (New York, N.Y.)
College of Physicians & Surgeons.

Lincoln School for Nursing. Science laboratory.

Y.M.C.A. 5 West 63rd Street, N.Y.C. Chemistry laboratory #403.

Spence School. Chemical laboratory toward blackboard.