This "fairy ring" of redwood trees is probably on the same ground a prehistoric giant once stood upon. At Riverfront Regional Park near the Russian River in Sonoma County, California.

Greenlaw's process.
7x11 Eastman No. 2, un-cataloged Wollensak lens.
My first successful calotype with this camera!
LV ~12, heavy fog. 25m @ f/16

Developed in 1.4g gallic acid in 200ml DH2O.
No visible image at start.
No image after 5 minutes in gallic.
Added 2 eyedroppers aceto-nitrate of silver, developed 45 more minutes, until shadow detail apparent and could not see shadow of fingers moving behind the sky.

Hope to make a print tomorrow.