. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. Fif. 135. Rah. Frog, iwkntkd by Joseph Wood, New Jersey. 1859. (From nun!. i S. National Museum.) made from a model of an old rail (shifting) frog in the collection. This type of frog was invented by Mr. Joseph Wood, of Red Bank, New Jersey, in 1859, and formed the basis of the invention of many types of spring-rail frogs now in JW* / 1-uK '?> <A* /""<? Fig. 136. Switches in Collier* Railroads, England, 1825. (From
. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. Fif. 135. Rah. Frog, iwkntkd by Joseph Wood, New Jersey. 1859. (From nun!. i S. National Museum.) made from a model of an old rail (shifting) frog in the collection. This type of frog was invented by Mr. Joseph Wood, of Red Bank, New Jersey, in 1859, and formed the basis of the invention of many types of spring-rail frogs now in JW* / 1-uK '?> <A* /""<? Fig. 136. Switches in Collier* Railroads, England, 1825. (From drawings in the (J - National Museum.) SWITCHES. Two types of switches in use in England in 1825 are shown in Fig. 13G. The drawings in the collection from which these are made are. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Smithsonian Institution. Board of Regents; United States National Museum. Report of the U. S. National Museum; Smithsonian Institution. Report of the Secretary. Washington : Smithsonian Institution
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Keywords: ., bookauthorsmithsonianinstitutio, bookcentury1800, bookdecade1840
