It is related of James Nasmyth that the rhythmic sound of a
merry little steam-engine introduced into his machine-shop so
quickened the strokes of every hammer, chisel and file in his
workmen’s hands that it nearly doubled the output of work for
the same wages.
A master tailor employed a number of workmen, who, getting hold
of a slow, doleful but catchy air, hummed it to the movement of
their needles, much to the retarding of their work. Observing
the secret, he treated the men to lively airs, having a merry
swing and a rapid movement, and soon the deft and nimble fingers
reverted to their accustomed quickness.
There is science as well as philosophy in singing over our tasks.
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