...; and, next to it, W ray's compound and pure gutta percha far surpasses the commercial gutta pficha hitherto employed ; but it remains to be seen whether...anxious consideration. The objections to iron wire are ite weight and liability to corrosion. Hemp has been substituted, hut at present with no satisfactory...

...advantages, and, next to it, Wray's compound and pure gntta percha far surpass the commercial gutu pcrcha hitherto employed; but it remains to be seen whether...substituted, but at present with no satisfactory result. All these difficulties, together with, those connected with the coiling and paying out of the -cable,...

...advantages, and, next to it, \V ray's compound and pure gutta percha far surpass the commercial gutta percha hitherto employed ; but it remains to be seen whether...substituted, but at present with no satisfactory result. All these difficulties, together with those connected with the coiling and paying out of the cable,...

...advantages, and, next to it, Wray's compound and pure gutta percha far surpass the commercial gutta percha hitherto employed ; but it remains to be seen whether...substituted, but at present with no satisfactory result. All these difficulties, together with those connected with the coiling and paying out of the cable,...

...difficulties in the employment of these new materials can be successfully overcome. The external projecting covering is still a subject of anxious consideration....substituted, but at present with no satisfactory result All these difficulties, together •with those connected with the coiling and paying out of the cable,...

...1851, only three thousand miles are actually in working order ; so that three-fourths may be considered a failure and loss to the country. The insulators...substituted, but at present with no satisfactory result. All these difficulties, together with those connected with the coiling and paying out of the cable,...

...1851, only three thousand miles are actually in working order ; so that three-fourths may be considered a failure and loss to the country. The insulators...substituted, but at present with no satisfactory result. All these difficulties, together with those connected with the coiling and paying out of the cable,...

...deterioration from mechanical violence, chemical decomposition or decay, and from the absorption of water ; the last circumstance does not appear to influence...substituted, but at present with no satisfactory result. All these difficulties, together with those connected with the coiling and paying out of the cable,...

...durability of cables. Electrically, India-rubber possesses high advantages, and, next to it, Wray"s compound and pure gutta-percha far surpass the commercial...substituted, but at present with no satisfactory result. All these difficulties, together with those connected with the coiling and paying out of the cable,...

...Electrical!}', india-rubber possesses high advantages, and, next to it, Wray 's compound and pure gnttaperclia far surpass the commercial gutta-percha hitherto employed...substituted, but at present with no satisfactory result. All these difficulties, together with those connected with the coiling and paying out of the cable,...