Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 333
by no means new, for it has been adopted hundreds of years ago bycomparatively rude tribes in the construction of timber bridges, to whichit readily lends itself Such bridges are described as having been erectedby the natives of Hindoostan, Canada, Thibet, etc., even at remote periods.The principle…
Inventions
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