Filtering a Fog.

Auckland Star, Volume XXIV, Issue 208, 2 September 1893, Page 1 (Supplement)

Filtering a Fog.

A London fog is worse than a ' darknes which may be felt,' for it is loaded with filth. Sanitary engineers have been battling with it for many years, trying to prevent its foul particles from invading the House of Commons. One night two year 8 ago they succeeded in conquering it.

Outside the fog was so dense that tho lights twinkled like half-extinguished matches, Inside the House the air was clear and pure, as it is on a sfcarlib night.

One who was curious to see the process by which this transformation had been effected would have been taken downstairs, far beneath the feeb of the unsuspecting members, and shown a vast layer of what) looked like cotton wool dragged through the Thames mud and sprinkled with ink.

A few hours before it was a mass of virgin-white wool, six inches Miick, and extending1 ovor an aroa of eight hundred feet. Through this bed the air from the outside had been driven by the force of a steam fan, and then, purified, allowed to enter the House of Commons.

The bed of wool served as a filter, and the filth deposited therein was a startling Bight, bub one that attested the triumph of the sanitary engineers.