Subject
- Iron--Corrosion1
- Jack-in-the-pulpit1
- Japanese honeysuckle1
- Jasper, William, approximately 1750-17791
- Juncus1
- Juncus effusus1
- Kayaking1
- Lactuca1
- Landscape changes1
- Lanterns1
- Large milkweed bug1
- Lespedeza cuneata1
- Letters1
- Liquid oxygen1
- Liriodendron tulipifera1
- Loblolly pine1
- Logging1
- Longleaf pine1
- Ludwigia1
- Luna moth1