Miipollancongleibleognephy. 439 
4, A historical and descriptive saratien of the Mammoth Cave 
of Kentucky, including explanations of the causes ag an in 
its formation, its Atmospheric con sean its Chemistry, Geology, 
ge etc. ; with full scientific details ‘of the a Fishes ; by 
U oRWOOD, M. 225 12mo, with illustrations. 
Philadelphia, 1870, (J. B. Lippincott & Co.)—All future visitors 
to the Mammoth Cave will have occasion to thank Dr. Norwood 
several interior views cave ich give some idea of the 
ers within, although a very inadequate one ould be 
supplemented by a good map of the extensive windings of the 
and mazes of the Mammoth Cave at over one hundred and fifty 
miles. n instrumental survey would probably shorten this 
assumed distance, but we know from our own wanderings in it 
that its extent is immense. The chapter on ee eyeless — is 
made up mostly from the writings of Agassiz and Wyman, and 
presents the facts on the subject in an a mn well pi mc 
to ier 0 and interest the general reader 
5. Tent life in Siberia, and Ad: dventures among the Koraks 
and other Tribes in Northern Kamtchatka and Northern Asia 
by Grorce Kinnan. 425 pp. 12mo, with a map. New York, 
1870. (G. P. Putnam & Sons, London ; 8. Low, Son and Marston). 
—A very readable and instructive narrative of travel in a little 
known region of the globe, is this neat volume of Mr. Kinnan’s. 
The costly and disastrous enterprise of the Western Union Tele- 
d full 
perusal, and is obviously the work of a nal observer and careful 
historian, who is never tedious, and has the agreeable art of carry- 
with 
6. ort of the ‘Suaicrtonenilend of the U. S. Coast fot, 
rig the a toas of the ewe, during the year ine 
“— Territory, by G. Davidson; obituary of Alexander Bache. 
Treatise on the power of Water as a gps to drive Flour 
J Turbines and other Hydrostatic 
a to oe en 
