132 77?^ American G eulogist. August, i904. 
The Tenth Meeting oe the Lake Superior Mining 
Institute will be held Aug. i6, 17, and 18 at Ironwood, 
Mich. There will be an excursion to Milwaukee and Chicago. 
It promi.ses to present a very interesting and valuable pro- 
gram. 
According to Dr. J. C. Branner the "stone reefs" of 
the Brazilian coast are entirely distinct from coral reefs, and 
are due to lithification of b.each sands in place — consolidated 
sand approaching quartzyte. Their existence forms many of 
the harbors on which are important cities. They usually are 
nearer the land than the coral reefs whenever both occu^ at 
the same place. They are flat-topped and flush with the sur- 
face of the sea at high tide. 
According to Professor H. F. Osborn there are in the 
American Museum of Natural History remains representing 
upwards of 770 specimens of fossil horses. In 1900 "a herd" 
of six Pleistocene horses were discovered belonging to the 
new species Equus scotfi. Explorations have demonstrated 
the existence of two and probably three collateral lines of 
horses contemporaneous with the Protohippus line which is 
regarded as the lineal ancestor of the true horse. 
Mr. Charles Schuchert, Assistant Curator, Division of 
Stratigraphic Paleontology in the U. S. National Museum, 
since 1894, has been appointed Curator of the Geological Col- 
lections in the Peabody Museum and Professor of Paleon- 
tologv in Yale University, also Professor of Historical Geol- 
ogy and member of the Governing Board of Sheffield Scien- 
tific School, succeeding the late professor Charles Emerson 
Beecher. 
During his period of service in Washington Mr. Schuchert 
has shown himself more than usually efficient, and his loss 
will be deeply felt. 
Professor Schuchert's address after September ist will be 
New Haven, Connecticut. 
Amygdaloid in Manitoba. According to the last "Sum- 
mary report" of the Canadian Geological Survey (for 1903) 
outcrops of copper-bearing amygdaloid have been discovered 
on lake Manitoba in Manitoba. The strike seems to run SE 
and NW, rising about ten feet above the general level of the 
plain with an apparent slight dip toward the west in which di- 
rection they run under almost horizontal beds of gvj'jsum. 
"Cavities near the surface are nearlv always empty and lined 
with a coating of white substance, occasionally they arc filled 
with greenish earth or with crystals of zeolites. Small jiarti- 
cles of copper can be seen with the microscope and some 
copper carbonate. Small areas of jasixM- c(Miglomoraic are 
associated with the amygdaloid, but their rolatiy-e position is 
imcertain." 
