1883.] Geology and Paleontology. 405 
of the winds. When the wind blows from the south, south-east 
or south-west, the phenomena of flow occur, while the ebb is 
synchronous with a north, north-east, or north-west wind. The 
roaring sound before mentioned, is observed to occur some time 
before the wind commences to blow. One of these intermittent 
wells, 113 feet in depth, is situated upon the farm of George Bull, 
at Shelby, seventy miles from Lincoln. Similar wells occur in the 
adjoining county of Butler. 
We, the undersigned, certify that the above statements are 
correct ; 
JAMES MACKIE, Lev: CUNNINGHAM, 
J. D. Corry, STEPHEN CUNNINGHAM, 
R. Sizer, Joun H. ANDERSON, 
T. Coway, J. P. Kinney, 
Jacon Scumip, Amos BULL. 
GEORGE BULL, 
Address any of the above at Shelby, Polk county, Neb. 
[It is further stated that the wells above mentioned only pass 
through “ soil” (probably the loess) and reach water at its bottom, 
which rests on a bed of gravel. The farmers of the region in 
question think that this water-bearing level is identical with that 
of the water of the Platte river, which bounds those counties on 
e —£ds. NATURALIST. ]} 
LYDEKKER on INDIAN MamMatia.—Two new parts of the Palæon- 
tology of the Geological Survey of India have come to hand. These 
include synopses of the extinct Rhinoceroses and horses, and addi- 
tions to the Proboscidia. The descriptions and figures are wel- 
come, and indicate again the richness of the tertiary Indian 
fauna, and the large size of many of the species. We must take 
the absence and presence of the nasal dermal horns, a character 
no better or more constant than various others, which he ignores. 
Aphelops is united with Aceratherium, although it has three digits 
in the Manus while Aceratherium has four, because the “ num- 
= digits can rarely be ascertained!” He objects to Cope’s 
ental formula for incisor teeth of the restricted genus Acerathe- 
an as being inaccurate. Had Dr, Lydekker been acquainted with 
bee American species referred to that genus at the time of writing, 
© Would have discovered that the diagnosis is correct as applied 
to them. The American forms, 4. mite and A. nebrascense, have 
dek EOSen Separated under the generic head Cœnopus. Dr. Ly- 
“xer Cannot discuss the American species of Aphelops, “ be- 
aes oe figures of the crania have been given.” Good figures of 
Nein Vue of the species will be found in the NATURALIST, 1879, P. 
Te et seq. T 
