358 MEMOIRS NATIONAL ACADEMY OF SCIENCES, VOL. XIII. 



POPLAR HILL. 



Giles County, Virginia. 



Here also Cranberry Plains and Poplar Camp. 



Latitude 37 13' N., longitude 80 47' W. 



Iron. Fine octahedrite (Of), of Brezina; Lockportite (type 16), of Meunier. 



Found 1852. 



Weight. Only 89 grams are known. 



Little or nothing seems to be known of the history of this meteorite. It was first listed 

 by Meunier * under the name of Poplar Camp. Brezina 2 lists it as Cranberry Plains, a name 

 which has been generally used since, but as Poplar Hill is a post office in Virginia this name 

 would seem preferable. 



Huntington 8 remarked concerning the structure as follows: 



This iron shows a very perfect octahedral structure. The lines on the faces of some of these octahedrons illus- 

 trate a phenomenon of frequent occurrence, namely, curved plates intermixed with perfect regular and parallel plates. 

 These curved plates must have originally formed through the liquid mass as true planes, like their neighbors, and 

 have been bent in the subsequent solidifying of the remaining material. Otherwise, if they had been distorted by 

 an exterior force, the regularity of the octahedron would have been at the same time destroyed. 



Huntington shows these figures in a cut. 



Meunier, 4 in 1893, grouped the meteorite as Lockportite, the characteristics of which are 

 "Mixture of kamacite predominating in finely hatched bands and of plesite. Structure octa- 

 hedral." With this meteorite he groups Cambria, Prambanan, and Losttown. From Hunt- 

 ington's and Meunier's descriptions and figures, Cohen 6 drew the conclusion that the meteorite 

 should be regarded as a fine octahedrite and placed it with the Prambanan group. 



Little of the meteorite is preserved. Wulfing 5 lists 89 grams, of which Harvard possesses 

 the largest quantity (36 grams). 



BIBLIOGRAPHY. 



1. 1884: MEUNIER. Me"t4orites, p. 116. 



2. 1885: BREZINA. Wiener Sammlung, p. 254. 



3. 1886: HUNTINGTON. Crystalline Structure. Amer. Journ. Sci., 3d ser., vol. 32, p. 300. (Cut of a slice with 



crumpled etching figures.) 



4. 1893: MEUNIER. Revision des fers me't&iriques, pp. 47 and 48. 



5. 1897: WULFINQ. Die Meteoriten in Sammlungen, p. 91. 



6. 1905: COHEN. Meteoritenkunde, Heft 3, p. 346. 



PORT ORFORD. 



Curry County, Oregon. 



Latitude 42 46' N., longitude 124 28' W. 



Pallasite (P). 



Found 1859; described 1860. 



Weight, estimated at 10,000 kgs. (22,000 Ibs.). 



Little is known of this meteorite. The first accounts of it were given by Jackson, 1 but 

 they are very meager. They are to be found in the Proceedings of the Boston Society of Nat- 

 ural History, and are as follows : 



Jackson reported to the Boston Society of Natural History, October 5, 1859, that 



among some specimens recently received from Oregon Territory was a piece of a meteorite containing crystals of oli- 

 vine, yielding 9 per cent of nickel. It was identical in appearance, and probably in composition, with the Pallas 

 meteorite of Siberia; he thought it not improbable that pieces may have fallen in the same meteoric shower in both 

 countries, as has happened in other instances though less widely separated. 



At the meeting of November 2, 1859, he 



read a letter from Doctor Evans, of Oregon Territory, confirming his opinion that the meteorite recently found in that 

 Territory is identical with the Pallas meteorite of Siberia. 



November 16, 1859, he- 

 read some letters from Doctor Evans concerning the meteorite discovered by him in Oregon Territory: the mass, about 

 3 feet of which was above ground, was in the mountains, about 40 milea from Port Orford, on the Pacific, and 

 easily accessible by mules. He hoped the society, as a body or individually, would take speedy and proper meas- 

 ures to secure its deposition by the Government in the Smithsonian Institution. 



