exhibit at the American
Museum of Natural History in New York City
includes some of Charles Darwin’s pocket notebooks.
They resemble elongated brown plain reporter
Moleskines. Sometimes he used them landscape-style,
writing and sketching parallel to the longer
dimension, as in the visible pages of the E
Notebook which includes the theory of natural
selection, but sometimes he used them reporter-style,
as in the celebrated "I
think" diagram that crystallized his insight that
all species evolved from others.