MINERAL PAINTS. 
The following' paper on the Georgia ocher deposits represents part 
of the results of field work by the Survey in that region during 1902. 
On page 228 will be found a brief note on the utilization of slags in 
the manufacture of pigments. Many localities still worked for min- 
eral paints were described, with analyses, by Benjamin in Mineral 
Resources of the United States for 1880, pages 702-714, and inci- 
dental references of value occasionally occur in other volumes of that 
series. 
OCCURRENCE AND DEVELOPMENT OF OCHER DEPOSITS IN THE 
CARTERSVILLE DISTRICT, GEORGIA. 
By C. W. Hayes and E. C. Eckel. 
OCCURRENCE. 
Intimately associated with the brown hematite deposits of the Car- 
tersville district, described on pages 238-241 of the present bulletin, 
are extensive deposits of yellow ocher Avhich have essentially the same 
composition, but differ in their physical characteristics. The ocher 
is confined to the Cambrian quartzite, and occurs along a more or less 
continuous band extending from the south side of the Etowah River 
at the wooden bridge northward at least to Rowland Springs, and 
probably beyond. Since it occurs in the form of a fine powder it makes 
little show at the surface, and its presence is made evident only by 
natural or artificial cuttings, which have removed the overlying 
mantle of fragmental and residual materials. The best exposures of 
the ocher occur at the south end of the wooden bridge across the 
Etowah River southeast of Cartersville. Here the river, in cutting 
across the quartzite ridge, has made a good natural exposure of the 
beds in place. The ocher has also been extensively mined at this point, 
so that abundant opportunity is afforded for studying its mode of occur- 
rence. The quartzite with which it is associated has been so exten- 
sively shattered by compression that its original bedding is very 
difficult to determine. At this point the ocher usually forms a series 
of extremely irregular branching veins, which intersect this shattered 
quartzite without any apparent system. These veins frequently 
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