Photographs
- Key Words
- copy work - raulston photoperiod curve series; daylength - annual change spring summer fall winter
- Country
- United States
- Date Taken
- March 1989
- Photographer
- J. C. Raulston
- Collection
- J. C. Raulston's Slide Collection
- Image Name
- 020-1045.JPG
- Image ID
- 15133