208

COAL MINES OF

horse-keeper should pass. When the windis north, north-north-east, or north-west, thegas is going down; but when south-east, oreast by north, the gas is given up, and rushesthrough this aperture in the most violent man-ner, similar to its coming up the cast-irontubes. Mr. Patterson, convinced that nodanger could arise, descended the upcast shaftwith the horse-keeper, and passed throughthis reservoir of gas with Dr. Clanny’s lamp;and by this means the man was enabled regu-larly to attend to his cattle.

The objections to this lamp arise from itsrequiring a person to work it; and as there isno possibility of altering the principle securelyto act otherwise, Dr. Clanny has invented anew lamp, supplying itself with air, and yield-ing a cheerful and brilliant light.

New Lamp.

The first new lamp of Dr. Clanny’s is amodification of the original upon a much moreportable scale, and in every respect calculatedto answer the purposes of working mines indangerous places, and of exploring old wastes;providing its introduction into general use is

6

/