408 Scientific Intelligence. 
CHELONIA. 
62. Testudo nebrascensis, Leidy........ 
6 
oo t 
= 8 
& & 
= 
a 
° 
BD 
i 
® 
B 
| 
Ce 
a 
© 
oe 
= 
Pe 
Le J 
ae 
5 
& 
SN: 
ae 
a 
MOLLUSCA. 
64. Helix Leidyi, Hall d Meek.. ae 
65. Planorbis nebrascensis, Sains & Shumar * ee Peg ay oe 
66. one diaphana, Evans & Shum 
67. Lymnea nebrascensis, Hvans & raat Sesets eee oe 
68. Physa secalina, Hvans & Shumard., 
CRUSTACEA. 
69. Cypris Leidyi, Hvans & Shumard.. 
% | [* 
ke KK: 
oe 
2. Letter from G. Garcta Moreno, to Prof. W. Jameson, relative to the 
Exploration of the Volcano of Pichincha, dated Quito, 13th January, 
1858, (cited from Edinb. New Phil. Jour., vol. vii, April, 1858.)— —tThe fol- - 
lowing i is a brief account of my last explori ng expedition to the volcano 
which overlooks Quito. The short distance at which the volcano Rucu- 
Pichincha is situated from this city, has contributed to excite the curiosity 
of the scientific travellers who have visited the territory of the Ecuador, 
and have cau 
stat 
Bouguer and. La Condamine, in 1742, w 
brink of the crater ; the celebrated Alacer Humboldt, in May at 
twice surmounted th igantic wall of dolerite which forms the easte 
border of the volcano; and about thirty years after, your countryman, 
the unfortunate Colonel Hall, and M. Boussingault, pire in the same 
I descen 
; but since 1844, in whink M. Sebas 
tin Wisse 
ded he 
st 1845, we 
tern led, without sufficien n, “ 
ve, has the form of a narrow valley, long and ion through te 
middle fh which iss from north to s a vhich receives 
eastern crater is 14,875 feet. 
oie more peta Ae 
is presented to 
the true crater of oe 
to naturalists— 
