Soil-testing. Class of 3 boys.
Three boys around table. One is at test tube rack; another is weighing soil on scale.
- Negative number
- 03022
- Lantern slide number
- 02486.B3G
- Locality
- BBG Room 322
- Date
- 12/27/1918
- Photograph by
- Louis Buhle
All rights reserved. For image use permission, contact [email protected].