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care, before he delivers them for use; but ifthe least injury or defect appears in thegauze, or any other part of a lamp, it is im-mediately set aside to be repaired, and theperson to whom it belongs is supplied witha perfect one.

After having dispatched the business ofthe morning, the lamp keeper occupies him-self during the day in walking leisurelythrough amongst the workmen, carryingsome spare lamps with him, to replace suchas may happen to be extinguished, &c.

After a little practice, the lamp keepersacquire great dexterity in the trimming, &c.of the lamps, and quickly discover theslightest defect or injury in the wire gauze.

It is scarcely necessary to observe, thatthe lamp keeper’s cabin is always placed ina secure part of the mine, as near the work-ings as circumstances will permit.” J. B.

Extract of a Letter from Mr. Peile to Sir H. Davt.

Colliery Office, Whitehaven,' 6 th July 1 816 .

“ I take the liberty of adding a further