HOW IT IS DONE IN LONDON. MISCELLANY The second letter of the correspondent of the Chicago Times, Mr. Wilkie, on the Fire Department of London, is as follows: I closed my last letter just as a small electric gong announced an alarm of fire, or, as Hotson termed it, a call. Knowing the perfection attained by the Fire-alarm Telegraph Corps at home, I was somewhat curious to see the means employed by the Englishmen in receiving an alarm. Accordingly, I made my way to an adjoining room, where I found a small group of men surrounding an instrument in the corner. Here I saw five plates of brass arranged in a circle and so placed that each could be touched by a brass arm or indicator, pivoted in the centre of the circle, and moving like the minute hand of a clock. The small gong ringing the alarm was just…
