342 
I. C. Russell—Subaérial Deposits of North America. 
BRYOZOA. 
Diastopora oolitica, Vine. 
99 
stomatoporoides ? Vine. 
ECHINODERMATA. 
Lodiadema granulata, n.sp. 
Pentacrinus levis, Miller. 
ANNELIDA. 
Ditrupa capitata, Phil. 
», etalenszs, Piette. 
», guinguesulcata, Munster. 
Serpula tetragona, Desl. 
», ¢ricristata, Goldfuss. 
ACTINOZOA. 
Thecocyathus, sp. 
INCERTA SEDIS. 
Onychites, sp. 
II.—SusabriaL Deposits or tHe Arip ReGion or Nort 
AMERICA. 
By Isrart C. Russext, 
of the United States Geological Survey; Washington D.C., U.S.A. 
Part II. 
(Concluded from p. 295.) 
COMPARISON of adobe with the loess of China forms the con- 
cluding part of this paper; but as no analyses of the Chinese 
deposit are known to me, a few analyses of the loess of the Missis- 
sippi Valley are inserted, not with the assumption, however, that 
the deposits bearing the same name in these two regions are identical. 
A comparison of this table with the one showing the composition of 
adobe is instructive, as it indicates that these two yellow earths 
have a very similar composition. There are other respects in which 
they bear a close resemblance to each other; but as my acquaintance 
with the loess of the Mississippi Valley is limited, this comparison 
will not be carried further. 
ANALYSES OF THE Logss oF THE MisstssiPpPI VALLEY.! 
Constituents. No. 1. No. 2 No. 3. No. 4. 
SOs er ereeern ss TOEOS > ocaose Gele@l  — oscoae (ASA Gee 60°69 
INO Ey Ghee aaceanes NPROR! Badoso VOKG4. 1 Seo. LQs26) waeeeen 7:95 
1RG AO) dccosnddeses SHS. 9 saoade DG so séo0se BPD Ssonoc 2°61 
He Or neaye ence 0 Gen eine Oye eee TD) «sce 67 
AMO sy escbacee ness Sito Meee oe 2A 0) arsRivece SP4AA yh eeee 52 
Te) Gacaaenenen SD Ome eke: ANB - sadsac OO" a hsass 13 
Mn Ops Se: “06 “(Sane ODM ee “12 
CaO) 2a roe. SOURS ee GH Sb oace 156 9 Bae ans 8:96 
MgO SOONERS ESR Bit Seite ent ane OLOO lem eecae 1 ae a 4°56 
INiais OMe eaten ISG BN set ek ICSU Mecca 4 Si oases 1:17 
TEGO se ee Wa eek B22 1,33). bea 2°06" ees I SBiaee ee 1-08 
TOM ca eee BLOOM ee See 220 Olas PIO see 80 al-14 
CODER ea OBO) i aA Gustine RS se a 9-63 
SO Rw) eeeiee ate OE} A a STA menses (0X9 Soosen 12 
Cyaacteeee CON aa anar SOM peaeeee “Lon meeee “19 
100-21 99-99 99°78 99-54 
a Contains H of organic matter, dried at 100° C. 
Organic Remains.—The fossils occurring in adobe, so far as I have 
been able to ascertain, are confined almost entirely to two classes, 
namely, land-shells and the bones of land-animals. Freshwater- 
' From “The Driftless Area of the Upper Mississippi Valley,’? by T. C. Cham- 
berlin and R. D. Salisbury, Sixth Ann. Rep. U.S. Geol. Surv. 1884-1885, p. 282. 
