104 MEMOIRS NATIONAL ACADEMY OF SCIENCES, VOL. XIII. 



metallic iron with an envelope of magnetite. The character and distribution of this magnetic oxide, the latter similar 

 to that of the masses of iron, furnished the authors with confirmation of the meteorite hypothesis as to the origin of 

 the crater. Further confirmation is found in the large amount of minutely pulverized silica, as well as fragments of 

 limestone, within the crater, and in the absence of volcanic rocks or volcanic phenomena from the immediate region. 

 The meteoric masses have been found distributed over a crescent shaped area surrounding the hole and concentric 

 with it, extending from northwest to east. Only two or three masses of the iron have been found within the crater 

 itself. A number of borings with the diamond drill were made in the effort to locate the supposed mass or masses 

 within the crater, one of these to a depth of over 1,000 feet. Several of them met with an obstruction of undetermined 

 nature, which was believed to be the expected meteorite. 



The meteorites of this fall are widely distributed among collections. 



BIBLIOGRAPHY. 



1. 1891 : FOOTE. A new locality for meteoric iron, with a preliminary notice of the discovery of diamonds in the iron. 



Amer. Journ. Sci., 3d ser., vol. 42, pp. 413-417. (Illustration of mass of 20 pounds, and of an etching, plates 

 14 and 15.) 



2. 1892: HUNTINGTON. "Science," July 8, 1892. 



3. 1892: MALLARD. Sur le fer natif de Canon Diablo. Comptes Rendus, Tome 114, p. 812-814. 



4. 1892: DAUBREE. Quelques Observations a la suite de la Communication de M. Mallard. Comptes Rendus, 



Tome 114, p. 814. 



5. 1892: FRIEDEL. Sur 1'existence du diamant dans le fer me'te'orique de Canon Diablo. Comptes Rendus, Tome 



115, p. 1037-1041. 



6. 1893: MOISSAN. IStude de la me'te'orite de Canon Diablo. Comptes Rendus, Tome 116, pp. 288-290. (Illustration 



(magnified) of a diamond 0.7-0.3 mm. in size.) 



7. 1893: FRIEDEL. Sur le fer me'te'orique de Canon Diablo. Comptes Rendus, Tome 116, pp. 290-291. 



8. 1893: DAUBREE. Observation surles conditions, quiparaissent avoir pr&ide'ii la formation desme'te'orites. Comptes 



Rendus, Tome 116, pp. 345-347. 



9. 1893: MEUNIER. Revision des fers me'te'oriques, pp. 29 and 37. 



10. 1893: MEUNIER. Remarques ge'ologiques sur les fers me'te'oriques diamantiferes. Comptes Rendus, Tome 116, 



pp. 409-410. 



11. 1893: KUNZ and HUNTINGTON. On the diamond in the Canon Diablo meteoric iron and on the hardness of carbo- 



rundum. Amer. Journ. Sci., 3d ser., vol. 46, pp. 470-473. 



12. 1893: BREZINA. Ueber neuere Meteoriten (Nurnberg), p. 165. 



13. 1893: VON HAUER. Ann. K. K. Naturhist. Hofmus. Wien, Bd. 8 (Not.), p. 29. 



14. 1894: HUNTINGTON. Further observations upon the occurrence of diamonds in meteorites. Proc. Amer. Acad. 



Arts and Sci., vol. 29, pp. 204-211. (Illustration of a mass of 1,087 pounds weight, an etching, and a diamond.) 



15. 1894: COHEN. Meteoritenkunde, pp. 86, 101, 143, and 144. 



16. 1895: DERBY. Constituents of the Canon Diablo Meteorite. Amer. Journ. Sci., 3d ser., vol. 49, pp. 101-110. 



17. 1895: BREZINA. Wiener Sammlung, p. 288. 



18. 1895: COHEN. Meteoreisen-Studien IV. Ann. K. K. Naturhist. Hofmus. Wien, Bd. 10, p. 82. 



19. 1905: BAHRINGER. Coon Mountain and its crater. Proc. Acad. Nat. Sci. Philadelphia, vol. 57, pp. 861-887. 



20. 1905: TILGHMAN. Coon Butte, Arizona. Proc. Acad. Nat. Sci. Philadelphia, vol. 57, pp. 887-914. 



21. 1906: Coon Butte, Arizona and the Canyon Diablo meteorites: Amer. Journ. Sci., 4th ser., vol. 21, p. 402. 



CAPE GIRARDEAU. 



Cape Girardeau County, Missouri. 



Latitude 37 14' N., longitude 89 31' W. 



Stone. Globular chondrite (Cc) of Brezina; Luceite (type 37), of Meunier. 



Fell 3 p. m., August 14, 1846; described 1886. 



Weight, 3 pieces, two of which weighed 2,058 grams. Assignable weight, 2,358 grams (5 Ibs.). 



This meteorite has been chiefly described by Dana and Penfield, 1 as follows: 



This stone was obtained by Dr. Otto Lugger, of Baltimore, when he was residing in St. Louis, about the year 1875, 

 from an acquaintance by the name of Padberg, whom he had employed to collect for him various objects in natural 

 history, minerals, etc. According to Padberg's statement the meteorite had formed part of his mineral collection 

 since 1847. It was provided with a label which stated that it fell at 3 o'clock on the afternoon of August 14, 1846, 

 accompanied by a loud report, upon a small farm belonging to an Englishman named W T illiam Free. This farm lay 

 some 7.5 miles south of Cape Girardeau in southeastern Missouri. The meteorite was given to Padberg by Free in 

 1847. It was further stated that the meteorite broke upon its fall into three pieces, two of which form the mass here 

 described, and the third was polished and presented by Dr. Lugger to Professor Uhlberg. 



