136 Letter from Dr. B. A. Gould. 
9, 1858; but the latter has a much thinner crust, a dar ‘i 
colored general basis or gangue, much larger globules, and at 3 
the same time, it is a firmer stone. 7 
There is even an internal similarity between the Searsmont 
meteorite and that of Duralla. They approach each other im — 
the thickness and general character of the crust; but the whole — 
of the latter is darker, and the regularity in the shape of its | 
globules is less marked. ; ES 
Should I succeed in recovering a portion of the now widely 
scattered fragments of this interesting stone, I shall enter upol 
a more detailed examination of its character. 
Letter to the Editors from Dr. B. A. Gouin, Director of the 
Cordoba Observatory, dated Cordoba, April 26, 1871. 
(Concluded from page 80.] 
The magnificence of the Milky Way in this vicinity is indescribable, sur 
m 2 
whether with or without astronomical information. en as was my oe 
for a photographic equipment before leaving home, it has been a hundred-fold 
increased since I began the survey of this geous of all the regions 
cts. i 
e news from the Kclipes-observang 60 long and anxiously expected— — 
just beginning to arrive; our mail facilities having been sadly interfered with : 
by the quarantine, established at Rosario, which has for more than two months — 
Slacod an absolute interdiction upon all personal communication wi 
posite character, although this idea met with suc 
hi 
cut off this part of the exhibition at those few stations 
have been received here. You may imagine with what eager interest we. 
awaiting the arrival of more detailed accounts from Europe or the 
Sennen 7 : 
You have unq d of the fearfu 
ye unquestionably hear I pestilence which has bee 
: ecm: ag capital of this republic. The yellow fever, which broke oul 
_ there at the close of January, has made such ravages that al] commerce ha 
