There are two models of this vehicle, one
designed to be drawn by a man, and the other by a horse.
The station is provided, in addition, with registering pressure
gauges, a large double dynamometric indicator, a counter of
electricity, balances of precision, etc.
An apparatus designed for measuring the rendering of presses is now in
course of construction.
Although the station has been in operation only from the 1st of
January, twenty-five machines have already been presented to be
tested.--_Extract from Le Genie Civil_.
* * * * *
WATER SOFTENING AND PURIFYING APPARATUS.
We have recently had brought under our notice a system of water and
sewage purification which appears to possess several substantial
advantages. Chief among these are simplicity in construction and
operation, economy in first cost and working and efficiency in action.
This system is the invention of Messrs. Slack & Brownlow, of Canning
Works, Upper Medlock Street, Manchester, and the apparatus adopted in
carrying it out is here illustrated. It consists of an iron
cylindrical tank having inside a series of plates arranged in a spiral
direction around a fixed center, and sloping downward at a
considerable angle outward.
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