Falconetti's Continuously Primed Siphon.--Manner of carrying a
water course over a canal, river, or road.--With engraving
The Weibel-Piccard System of Evaporating Liquids.--
2 illustrations
II. TECHNOLOGY.--Coal Gas as a Labor--saving Agent in Mechanical
Trades.--By T. FLETCHER.--Gas as fuel.--Arrangement of burners
for disinfection, for drying glue, albumen, etc.--Best burners.
--Gas bars for furnaces, etc.