ANALYSES OF STONE METEORITES COMPILED 
AND CLASSIFIED. 
BY OLIVER CUMMINGS FARRINGTON. 

The object of this publication is twofold: (1) To give a compilation 
of analyses of stone meteorites of the same nature as that already made 
by the author for iron meteorites.* (2) To use these analyses as a 
basis for the establishment of a quantitative classification. The plan 
on which the analyses have been collected for the first purpose has 
already been described in the introduction to the paper on Analyses of 
Iron Meteorites. The need of such a collection is due to the fact that 
as with the iron meteorites, the last extensive compilation of analyses 
of stone meteorites which was published was that of Wadsworth in 
1884., Since Wadsworth’s compilation a number of excellent analyses 
have been made both of meteorites which have fallen since that time 
and of earlier ones, and the convenience of having these analyses 
grouped together for purposes of reference is obvious. The chief 
difference between the collection by the present writer of the analyses 
of the stone meteorites and that of the iron meteorites is that a more 
rigid selection of the analyses of the stone meteorites has been made. 
Only those analyses which gave satisfactory evidence of being thorough 
and complete have been admitted to the list. On the other hand 
tolerance has been exercised in the admission of analyses which might 
on the whole be complete although obviously containing minor errors. 
The greatest difficulty which has been encountered in including analyses 
in the collection has been that of obtaining mass analyses. It has been 
a common tendency of analysts of stone meteorites to give only analyses 
of separate portions. In order to combine the analyses of the separate 
portions into a mass analysis ‘a reduction of all results to 100 is, of 
course, necessary. The results thus obtained probably often fail to 
accurately represent all the constituents of the meteorite, but on the 
* Analyses of Iron Meteorites Compiled and Classified, Field Col. Mus. Pub. 1907, 
Geol. Ser., Vol. 3, pp. 59-110. 
T Rocks of the Cordilleras; Mem. Mus. Comp. Zool. Cambridge, Mass., 1884, Vol. 
II, pt. 1, pp. XVI-X XXIII. 
195 
