Photographs
- Key Words
- text - phys - photoperiod curve for different latitudes and critical daylength, NY NC FL equator
- Country
- United States
- Date Taken
- March 1989
- Photographer
- J. C. Raulston
- Collection
- J. C. Raulston's Slide Collection
- Image Name
- 020-1039.JPG
- Image ID
- 4764