A botany class at Barnard College, New York City, between ca. 1915 and ca. 1920, by Bain News Service, via Library of Congress Prints and Photographs Division. (Click here to see a larger version on the Library’s flickr photostream.)
In theory, I would think they are all working on the same thing. But looking at the image, it is hard to say exactly what they are doing and if anyone is on the same page.
This must be a “lab” session. The women in the back seems to be tieing up and measuring plants, and the one in front looks like she’s stirring something — and daydreaming.
A botany class at Barnard College, New York City, between ca. 1915 and ca. 1920, by Bain News Service, via Library of Congress Prints and Photographs Division. (Click here to see a larger version on the Library’s flickr photostream.)
enclos*ure 
In theory, I would think they are all working on the same thing. But looking at the image, it is hard to say exactly what they are doing and if anyone is on the same page.
This must be a “lab” session. The women in the back seems to be tieing up and measuring plants, and the one in front looks like she’s stirring something — and daydreaming.