{1} We were asked by a learned brother
philosopher who saw this article in MS. what we meant
by alluding to rudimentary organs in machines.
Could we, he asked, give any example of such organs?
We pointed to the little protuberance at the bottom
of the bowl of our tobacco pipe. This organ
was originally designed for the same purpose as the
rim at the bottom of a tea-cup, which is but another
form of the same function. Its purpose was to
keep the heat of the pipe from marking the table on
which it rested. Originally, as we have seen
in very early tobacco pipes, this protuberance was
of a very different shape to what it is now.
It was broad at the bottom and flat, so that while
the pipe was being smoked the bowl might rest upon
the table. Use and disuse have here come into
play and served to reduce the function to its present
rudimentary condition. That these rudimentary
organs are rarer in machinery than in animal life
is owing to the more prompt action of the human selection
as compared with the slower but even surer operation
of natural selection. Man may make mistakes;
in the long run nature never does so. We have
only given an imperfect example, but the intelligent
reader will supply himself with illustrations.