. The Encyclopaedia Britannica; ... A dictionary of arts, sciences and general literature. FlQ. 126.—Newark Dyke Bridge. originally intended to be used in the erection ; and practicalconsiderations, in this case, also compelled the use of the. Fia. 127.—Section of Newark Dyke Bridge. rectangular tube. It must also be remarked, that theresult of experiments made on round, oval, and rectangularwrought iron tubes, when reduced to the same depth andcompared, was in favour of the rectangular form, althoughwithin ordinary limits the form was not proved to be amatter of very great importance. It may
. The Encyclopaedia Britannica; ... A dictionary of arts, sciences and general literature. FlQ. 126.—Newark Dyke Bridge. originally intended to be used in the erection ; and practicalconsiderations, in this case, also compelled the use of the. Fia. 127.—Section of Newark Dyke Bridge. rectangular tube. It must also be remarked, that theresult of experiments made on round, oval, and rectangularwrought iron tubes, when reduced to the same depth andcompared, was in favour of the rectangular form, althoughwithin ordinary limits the form was not proved to be amatter of very great importance. It may be added, thatthis bridge has now been in use six years, that the deflectionhas been carefully tested, from time to time, with theutmost precision, and that not the slightest perceptibleincrease has taken place during that period. The eare with 4—14 whichthe painting has been attended, and the protectionafforded by the roof, have also entirely preserved it fromthe slightest damage by oxidation ; and it is difficult toconceive that even the lapse of centuries can in any wayaffect such a structure, or to doubt that it will remain oneof the most durable, as it certainly is one of the most remark-able monuments of the enterprise of the
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