photographs
Lusk is sitting in a chair in front of some book shelves full of books.
I. P. Pavlov and W. T. Pavlov are standing next to each other in front of a building.
Pavlov is standing in front of a building with his arms folded.
I. P. Pavlov and Jacques Loeb are standing in a circle with another man talking in front of a building.
Child is working at his lab bench next to a microscope.
Harold Tupper Mead sitting at a table with a microscope. Behind him is a large glass case filled with various plants and a map can be seen on the wall.
Danforth is turned to face the camera, seated at a table with a microscope and a piece of paper in front of him. He is wearing glasses and a white lab coat, and there is a shelf on the wood-paneled wall in the background.
Hayden, on the left, and Collet are standing in on the grass in front of a row of hedges. Both women are wearing dresses, with their arms at their sides.
Forbes is standing on grass, facing the camera. He is wearing glasses and a suit.
Danforth is seated at a table looking into a microscope. There is a shelf and a notice tacked to the wood-paneled far wall.
Maxwell is sitting at his desk, writing. He is wearing glasses and a suit, and his left arm is placed on his leg.
Harvey is facing the camera but looking down into a mall glass container held in his right hand. He is behind a table covered in lab equipment. There are pipes and a faucet against the far wall.