An organ-grinder is carrying a very large organ down the street as he passes a fellow musician with a much smaller instrument and a monkey; representing evolution by natural selection. Wood engraving after G. Du Maurier.

[Place of publication not identified] : [publisher not identified]

1 print : wood engraving ; sheet 12.5 x 13.5 cm

An illustration of Darwinism. Without use, an organ dwindles; with use it increases. For instance, the organ of a grinder who, in the struggle for existence, relies entirely on his instrument, is invariably larger than that of the grinder who, in addition, uses a monkey. Most of our readers must have noticed this. Du Maurier.

Wellcome Collection 34162i