Schleiden's text-book did not appear until too late to be known to Griffith.
On the afternoon of April 27 Schleiden was back in Washington.
Schleiden immediately notified Stephens of his presence in Richmond and desire for an interview, and was at once received.
This important work dated back to 1842 and was inspired by his enthusiasm for the then novel cell-theory of Schleiden and Schwann.
Schleiden had noticed in the plant cell a finely granular substance which he termed “plant slime” (Pflanzenschleim).
