“Nature will bear the closest inspection. She invites us to lay our eye level with her smallest leaf, and take an insect view of its plain.”
-Henry David Thoreau
Cross section of a hemp leaf showing a small vein and the mesophyll tissue. Photo taken with a light microscope and magnified 150 times. University of California, Santa Barbara – November 26, 1953
Cross section of a hemp leaf showing the midvein. Photo taken with a light microscope magnified 130 times. University of California, Santa Barbara – November 26, 1953