Meteorite Collection — Handbook and Catalogue. 31 



that if the interior were iron up to within 500 miles of the surface it 

 would give to the earth its present density, and the outflow of iron 

 at Greenland makes such a constitution seem very probable. 



Since this material, too, so closely resembles the meteoric irons 

 in constitution, and since basalts and peridotic rocks are found upon 

 the earth which are analogous in constitution to many of the aerolites, 

 it further seems probable, as pointed out by Daubr£e, that the dif- 

 ferent meteorites represent in epitome the structure and constitution 

 of the earth as a whole and that study of these is equivalent to pene- 

 trating by a side glance into the inaccessible depths of our own sphere. 



Certainly, so far as present investigations have gone, a wonder- 

 ful similarity in the constitution of the bodies of the universe is indi- 

 cated, which may well lead to the belief that all knowledge gained 

 regarding extra-terrestrial bodies but increases our sources of inform- 

 ation concerning the history and structure of the earth itself. 



BIBLIOGRAPHY. 



For information in greater detail in regard to the subjects dis- 

 cussed in the foregoing pages, the reader will find the following 

 works useful. 



For lists of meteorites with localities and dates, see : 

 Catalogue of All Recorded Meteorites, with a Description of the Speci- 

 mens in th" Harvard College Collection. O. W. Huntington. 

 Reprinted from Proc. Am. Acad, of Arts and Sci., 1887. 

 Die Meteoriten in Sammlungen, ihre Geschichte, mitieralogische und 



chemische Beschaffenheit. Otto Buchner, Leipzig, 1863. 

 Die Meteoritcnsammlung des k. k. mineralogischen Hofkabinetcs in Wien, 



am 1 Mai, 1885. Aristides Brezina, Vienna, 1885. 

 An Introduction to the Study of Meteorites, with a List of the Meteorites 

 Represented in the Collection of the British Museum. L. Fletcher, 

 London, 1890. 

 Guide dans la Collection de Me'tiorites du Museum d'Hisloire Naturelle. 



Paris. Paris, 1889. 

 The Meteorite Collection in the U. S. National Museum. F. W. Clarke. 



From the Report of the vSmithsonian Institution, 1885-86. 

 Catalogue of the Collection of Meteorites in the Peabody Museum of 

 Yale College. E. S. Dana. American Journal of Science, Ap- 

 pendix to Vol. 32, 1886. 



