nventor, Mr. H. W. Carnes, box other purposes. In building the tunnel it is preferable that dense state, leaving in the ladle the cold, unamalgamated 143, Brookline, Mass. the side walls should be made entirely of iron and put to- iron, with the scoria floating on the top; thereby producing ■ ^ < »… … gage with it and hold-it fast. It is a compact and service- the top of the foundation wall, and a flange on top to whichj impart all the strength of a sectional boiler, with no large flat the bottom section of the arch is bolted. The arch consists I able fastenitig. surfaces, nor any great volume…
