Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 832
re in constant use, the total cost, light forlight, is only Jth of that of ordinary burners.The light of the Welsbach burner is whiterthan ordinary gaslight. It is rich in the bluerays, and, therefore, more like daylight, per-mitting well the comparison of shades ofcolour, and it is excellently… … Fig. 351^.This new gas-lighting must also be a great
Inventions
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