. Bulletin - United States National Museum. Science. Figure 74.—Theodolite used by Orange Warner Ellis about 1780 for surveying boundary between the United States and Canada in the area which is now Vermont. USNM 309596. Greenough, Thomas (1710-1785), Boston, Mass. Surveying Compass^ made of hickory with engraved paper compass card. Over-all length 11 ft.; dial 5/2 in. in diameter. Central medalHon on card depicts man along shoreline using a Davis quadrant with a schooner offshore, with touches of red. Inscribed in gilt in band around central medallion: "Made and Sold by THOMAS GREENOUGH,


. Bulletin - United States National Museum. Science. Figure 74.—Theodolite used by Orange Warner Ellis about 1780 for surveying boundary between the United States and Canada in the area which is now Vermont. USNM 309596. Greenough, Thomas (1710-1785), Boston, Mass. Surveying Compass^ made of hickory with engraved paper compass card. Over-all length 11 ft.; dial 5/2 in. in diameter. Central medalHon on card depicts man along shoreline using a Davis quadrant with a schooner offshore, with touches of red. Inscribed in gilt in band around central medallion: "Made and Sold by THOMAS GREENOUGH, Boston, Ncw ; Uscd by Joseph Frye in 1762 for surveying his land grant in what is now Fryeburg, Maine. Loan from Laurits C. Eichner, Clifton, , in 1957. USNM 315001. Figure 44. 138. 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.


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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience