104 HI. Leffmann—Geyser Waters and Deposits. 
and the characteristic Cardiola speciosa, could scarcely be more 
perfectly represented than the Domanik schists of Ukta, 
Russia, with their ‘Kalknieren’ and the ‘Goniatiten Schiefer’ 
of Biidesheim in the Hifel. Their ‘Black shales saturated 
with naphtha,’ the ‘calcareous concretion,’ the ‘Goniatites’ (the 
species are closely comparable), the ‘slender Orthoceratites,’ and 
the ‘Cardium palmatum’ of Goldfuss= Cardiola retrostriata Key- 
serling (the figures of which in Keyserling, Beob., p. 254, t. in 
fig. 8, or as figured by Roemer, 1876, Taf. 35, fig. 16 a, 0, ¢, d, 
are among the most perfect illustrations I have seen of the 
common Portage Cardiola), and these all leave little doubt as 
Art. IX.— Contributions to the Geological Chemistry of 
Yellowstone National Park. 
= Geyser waters and deposits; by Henry Lurrmann, M.D. 
THE specimens from which the following analyses were made 
were collected by Dr. A. C. Peale in 1878. Most of the 
geysers and hot springs are siliceous and produce deposits 
which vary from hyalite to chalcedony according to age. 42 
most of the waters examined the silica is in the free condition 
and has been so expressed. All the results are given in grains 
to the Imperial gallon. 
Pie og ser. 
Calcium sulphate... --_- 1°400 
Sodium sulphate --.-.__- 1°890 
Sodium hietide.. (o.oo 61°390 
IHGA. ou scous Co hebue eee cys 7°846 
