286 W. E. Hidden— Whitfield County Meteoric Iron. 
any particular groups. They are simply mean values obtained 
Se n— 
by combining the numbers M ( ——) of the last table in a cer: 
d 
tain way. From other combinations it is plain that slightly 
refractive equivalents as given by Landolt—i. e., 7°60 for CH, 
and 3:00 for O, which it must be remembered were calculated 
from numbers differing as widely perhaps as the above. 
Whether these variations depend for their explanation on the 
possible impurity of the liquids examined, or whether they 
are to a greater extent due to peculiarities of each individual 
compound, is as yet not quite plain. It seems probable, how- 
ever, in view of all that has been thus far done on the subject, 
that the latter is the more plausible supposition. But 1t 1s 
only by refined and extended investigations of various physi- 
cal properties and correlation of the results thus obtained, that 
the complete solution of the problem may be expected. Hor 
this purpose, I had wished to make use of some of the results 
obtained by Pribram and Hand] on the transpiration of liquids 
(Wien. Sitzungsbr. 80), but unfortunately I was unable to 
obtain this journal. 
There are many other interesting peculiarities of these ethers 
which might be mentioned, but their discussion belongs more 
operly to an investigation soon to be expected (or perhaps 
recently published), from Herrn Emil Elsisser, to whom, 
was mentioned, I am indebted for the data from which I calcu- 
lated the densities of the liquids corresponding to the different 
temperatures. To Professor Meyer I would also express ae 
sincere thanks for assistance, without which the completion ° 
the above experiments would not have been possible. 
Wesleyan University, February, 1881. 
‘Arr. XXXIV.—On the Whitfield County, Georgia, Meteor Iron; 
by W. Earu Hippen. 
THIS iron was discovered in 1877 on a farm about udaioe! 
miles northeast of Dalton, Georgia, near the Tennessee a0 
North Carolina State lines, a region which it will be agi 
bered is remarkable for the number of meteorites 1t has “it 
forded. As has happened in similar cases the specimen ee 
locally considered to be native iron and was preserved as sue 
until Dr. Geo. B. Little, then State Geologist of Georgia, ie ? 
the region in 1878, and recognizing its real nature procur 
Werner 
a en NN 
PR er a ee nae a ee 
isa ie nol) as Se NG la a ala cate eas de Ri ak adie ie ae ee ia athe oe Ne td 
