required to shown in the above engravings, and when principal features and advantages, rather than to it. be stayed with a great number of angle iron great strength and lightness are required, the the relative parts which are employed in the ribs and braces, and the iron of the arch itself shell of… … invented by Mr. J. Berdan, of Plymouth, Michi- ted plates in the crowns of furnaces, in the total cost, and if to this be added the saving gan, the principal features of which are not a of weight and cost effected by dispensing with tops of flues, and the bottoms of cylindrical little novel. By his…
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