e inventor has provided cushion is forced down onto the floor. To hold the It would seem an easy thing to devise some attachment a central tube, D, and connected it with the adjacent cushion in this position a locking device, 3, is pro- of this character, but not so. A box secured to some side… … end can be changed at will to suit convenience or for the school, and the sum required annually is approxi: blowing out soot from all sides,
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