This picture is taken from his book
"In Tune With The Infinite or Fullness of Peace, Power and Plenty" 50th Anniversary Edition - 1947
First published 1837 - classic book.
A bestseller at the time, someone should republish it. Go look around your old book shops you may just be lucky enough to acquire it.

It is a bit Religous in parts but not in a stuffy sense. He was an inspired guy much like R.W.Emerson - a free thinking individual - way ahead of his time.