ls. The materialsare:| side ring of the material. The conical heap is again con- most of the matters which occupy the time of Congress. It} Gravel screenings or sand; a silicious gravel in pieces, say, structed, and about a quarter of a bucket of water splashed is not of them that I propose to… … the period within which the : of working, where it is spread Preah chanecuncehe syctent OF Fig. 8—LAYING DOWN THE ASPHALTE COULE. STE MH Oe laa nantly caeoe paving has been effected. Be ond one of the three tined ginning under the Second Empire, it is still in progress. ; usually Portland cement.…
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