Seed sorter
- HF-ID: HFH-0032
- Category: Visual Materials
- Creator: Gast, P.R.
- Date: 1938 to 1941
- Location: Harvard Forest
- Media: Photographs and negatives
- Contents:
- 2 black and white photos: 1, 11 - 4.75"x7"
- 5x7.
- 10 negatives: 1v, 2v, 3v, 4v, 6v, 7v, 8v, 9v, 11v, 12v
- Keywords: cabot foundation, seeds
- Abstract:
- P.R. Gast, as part of a three-year study of the relation of seed weight an orgin to seedling weight done in cooperation with the Cabot Foundation, built apparatus for sorting seeds by air current. An early model used a glass air column, while a later, larger version used a column made with sheet metal.
- 1v. Researcher pouring seeds into seed sorting device with sheet metal column, 1941.
- 2v, 3v, 4v, 6v, 7v. Seed sorting device with sheet metal column, 1941.
- 8v, 9v. Two researchers working with seed sorting device with sheet metal column, 1941.
- 11v, 12v. Early seed sorting device using glass air column tubes, February 1938 (see HFH-0031).
- Photos by P.R. Gast, 1938-1941.
- Related Items:
- Archives Location: Historical Photographs Box 1, Tools and Instruments
- Access: Active
- Administrative Notes:
- No description on envelope. No HF photo numbers on negatives (numbers in description are negative numbers).