Physiology-Soils PM Negatives 017-020

Title

Physiology-Soils PM Negatives 017-020

Creator

Krauss, Beatrice H.

Date

1940

Format

Page

Description

Transverse sections of stem of 8-months-old seedling, at different levels.

#17, 45/ᵘ below #16; #18, 45/ᵘ below #17; #19, 75/ᵘ below #18; and #20, 60/ᵘ below #19.

Photographed by B. Krauss, July 5 and 6, 1940