Miscellaneous. 495 
—— were more or less filled, and the whole covered with 
mminuted materials which, spread smoothly over the underlying 
rocks, fo formed a surface particularly favourable for cultivation.” 
Turning from the systematic, exact, ard well-applied geology of 
the United States surveyors to the vague and dogmatic, uneducated 
and pretentiors elaboration of an amateur's attempt at riae 
and correlation of tbe grand geological phenomena of the 
hemi phere, we take up, in Mr. G. Catlin’s * Lifted and Subsided od 
of America, a budget of as imperfect observations, erroneous im- 
pressions, false conclusions, and baseless fantasies as were ever put 
together in a so-called geological book. The only point of interest 
is the reference to subterranean streams of water in the Rocky- 
Mountain district; but far other means than crude notions, picked 
up casually in travel, and shaped by a little book-reading, must be 
used to indicate their unseen courses and lighten their obscure his- 
tories, whether they come out in the Pacific or the Atlantic, in both 
or in neither 
MISCELLANEOUS. 
Land- Planaric. 
To the Editors of the Annals and Magazine of Astral History. 
GENTLEMEN,—In the September Number of the * Annals of Natural 
oe hl (page 255) I observe a notice of two species of us 
Planaric trom Borneo, by the Rev. W. Houghton, who inquires re- 
Vincit iio occurrence of similar forms elsewhere. It | may interent 
Mr. Houghton to know that I described a similar species, occurrin, 
at Madras in the cold season, under the name of Planaria pe 
nm ier of larger size an had no transverse stripes on the 
t give an exact reference to the volume of the ‘Madras 
J pital of Literature and Science’ in which the description occurs* 
but, i oughton desires, do so on my return home, and 
Tu ufus even be able to find a loose copy of the paper itself for 
him I remain, Gentlemen, yours &c., 
WALTER Exzror, F.LS. 
ia Nov. 11, 1870. 
m now able to add the reference :—Madras Journ. of Lit. and Sc. 
ú xv. (1848) p. 162, pl. 1. 
Walfelee, Nov. 26th. 
Notes on the Genus Myoictis. By Dr. J. E. Gray, F.R.S. 
I described this m. in the * Proceedings of the Zool ogical 
Society for 1858, from a small animal which Mr. Wallace found in 
the Island of Aru, where it “lee in houses and is as destructive as 
rats to every thing eatable. 
e British Museum received Aes Mr. Franks, as coming from 
ue Leyden Museum, in 1868, uch larger animal, under the 
me of “ Myodictus Thorbeckii.” « Guilolo * Sala com- 
pases of the two animals, it is vedi "the adult state of the 
