Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 705
Fig. 313/.—Matrices dropping into Magazine. The rate at which the work is produced is very great. One goodoperator with one machine can, it is said, turn out, hour by hour, matterthat would be equivalent to two and a half pages of this book, arrangedsolid or without break. There are, of course,… … Fig. 314.—Recording Anemometer. RECORDING INSTRUMENTS. SIR JOHN HERSCHEL, in enumerating at the close of his inesti-mable Discourse on the Study of Natural Philosophy the causes■of the rapid development of the physical sciences in modern times, assignsa prominent place to the improvement of…
Inventions
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