70 Scientific Intelligence. 
vania by the Ohio River, that they occur abundantly north of it, 
“covering the surfa ce like flocks of shee ep,” and not south of it, 
where there is nothing in the topography to give such a limit to 
transport by icebergs, is stated to be evidence on this point. The 
author observes that the rivers of the county, like those of the 
adjoining Beaver and Lawrence Counties, discussed in his former 
report (No. QQ), flow over a great thickness of stratified silt, sand 
and gravel, even 700 feet in some cases, showing that the original 
rocky bottom is thus dee 2 urie 
3. Annual Report of the Wisconsin Bove baw Survey for the 
year 1879; by T. C, Cuampertin, Chief Geologist. 72 pp. 8vo. 
adison, Wisconsin, 1880.—Besides details respecting the distri- 
— of collections of fossils, this Report contains descriptions 
of new Paleozoic fossils by R. P. Whitfield, and descriptions of 
ee | species of Fungi by W. F. Bundy. Of the fossils the 
following gre from se Potsdam sandstone: Holopea Sweeti, Cono- 
cephalites? quadratus, C.? explanatus, Ptychaspis striata, Dicel- 
locephalus Lodensis, eee Aglaspis Hatoni. Myr. Whitfie 1d describes 
also new species from the Trenton, Hudson River group, an 
Niagara, and one, a Discina, from beds of the Hamilton period. 
4, Report on the Florida Reefs; by Louis Acassiz. Accom- 
pees by illustrations of Florida Corals from drawings by A. 
oNREL, BurKHaARDT, A, Acassiz and Rarer. Memoirs of the 
Museum of Comparative Zoology at Harvard College, vol. bes 
62 pp. 4to. Plates 1to xxu1. Cambridge, 1880.— 
aticcstat by the Museum of Comparative Zoology, of Pac iaaoe 
uis Agassiz’s Report on the Florida Coral Reefs, only extracts 
= which had appeared in the Coast Survey Report for 1851, is 
making accessible one of the most interesting of his memoirs, and 
iving it augmented value through the addition of plates of 
lorida Corals. These plates, which have great beauty and _per- 
fection, were drawn and lithographed for the original report, but 
were never published. To thesvolume Mr. Alexander Agassiz has 
added the sketch of Florida from Professor Agassiz’s “ * Methods 
of Study,” based upon his inyestigations of the reefs (all which 
were carried on under the auspices “of the Coast Survey), and, for 
the convenience of the reader, a sketch map of Southern Floris 
ar the Keys, Segoe from Coast Survey Maps. 
. Early Man in Britain, and his gar in ur  Slear Period; 
y ow. ae ‘Dawass 8, M.A, E.R. 8 pp. 8vo, with 
London, 1880. "Giaemiian & Co.).— 
and moe pat from saa phaarretion. It follows 
a work on Cave Hunting by the same author, palente in 1874. 
While devoted especially to facts in Britain t gives a general 
review of those of Europe; and, besides heating of human 
