Physiology-Soils PM Negatives 057-060

Title

Physiology-Soils PM Negatives 057-060

Creator

Date

1940

Format

Description

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

#57, 45/ᵘ below #56; #58, 120/ᵘ below 57; #59, 75/ᵘ below #58; and #60, 75/ᵘ below #59.

Photographed by B. Krauss, July 8, 1940.