754 The American Naturalist. [September, 
General Notes. 
GEOLOGY AND PALEONTOLOGY. 
Geological Survey of Missouri.—Mr. Arthur Winslow the 
State Geologist makes the following report of progress during the month 
of April to Governor Francis as President of the Board of Managers 
of the Department of Geology and Mines of Missouri: Early in the 
month field work was actively resumed. The examination of the zine 
and lead deposits was taken up in Jasper and Newton counties, and 
detailed mapping is now in progress there. Examinations of iron ores 
have been made in Stoddard, Dent, Callaway, Cooper, Saline, St. 
Clair, Butler and Wayne counties. Field work on the clay deposits 
has been continued in St. Charles and St. Louis counties. In the 
office the proofs of the engraved Higginsville sheet and of the accom- 
panying report have been corrected, and good progress has been made 
in the preparation and revision of the report on the mineral waters, the 
report on the iron ores and the report on the paleontology of the 
State. 
For May Mr. Winslow makes the following report: 
Much attention has been given to the study of the zinc and lead 
deposits and in this connection examinations have been made in Jas- 
per, Newton, Lawrence, Greene and St. Francois counties. In addi- 
tion detailed mapping has been prosecuted in Jasper county and about 
140 square miles have been covered during the month. Further, 
_ there has been collected in Jasper county a large number of charts, 
showing the location of mining properties, shafts and ore bodies, and 
a great amount of statistical matter relating to these. The material 
thus acquired will be used in the preparation of the general report 
upon the zine and lead deposits and also in the special report which 
will accompany the maps of Jasper county now being prepared. In 
connection with the examination of the iron ores stratigraphic studies 
of the Ozark region have been prosecuted along the Big Piny and 
Gasconade Rivers, in Texas, Pulaski, Phelps, Maries, Osage and Gas- 
conade counties. In addition iron ore deposits have been inspected in 
Ripley, Carter, Wayne and Butler counties. The clays of the State 
have been subjects of further examination in both the field and the 
laboratory, deposits having been visited in St. Louis, Jefferson, Wash- 
