Photographs
- Key Words
- copy work - drawing figure - photoperiod curve for equator to new york - daylength phys light
- Country
- United States
- Date Taken
- March 1989
- Photographer
- J. C. Raulston
- Collection
- J. C. Raulston's Slide Collection
- Image Name
- 020-1040.JPG
- Image ID
- 9468