of ample strength, the factthat the bond between cement and asphalt is not perfect,and the fact that brick made of asphalt and limestone,although brittle when struck a sudden blow, will yieldslowly to compression, are problems which in this case become of minor import-ance. The exposed parts ofthe… … IMFBOVED BAILBOADSWITCH. m^/MmMMfx^: !.r!«S^-<s*fetei^.^>iM<*s^ /:wy;fW/imkw, .^ -J J- - 1- -lJ-^ W//^/A ■<xmzf(Mm^^//fm^/^,. mti. The engraving shows animproved railroad switch recently patented by Mr. John H. Hortman, of Hopewell,Mercer Co., N. J. The principal novelty in this…
