Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 359
r its lightness, and has been muchadmired, but there is no provision made for changes of temperature,and it cannot be regarded as a complete success. In fact, the dif-ficulties which attend any method of fastening the ends of a trussbecome insuperable in metallic structures of large size, but in… … Water-Proof Paper, which may be used with excellent effectin packing goods which are likely to be exposed to damp or rain,may be prepared by treating strong unglazed paper with a mixtureof equal parts copal varnish and linseed oil, with a little litharge topromote drying. The paper may either be…
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