Record of Geology of Texas, 1887-1896. 
229 
363. S'Teeeruwitz^ W. H. Vof, 
Irrigation and Drainage. 
Geological and Scientific Bulletin, Vol. I, No. 4. Houston, 
Aug., 1888. 
(Continued in Vol. I, No. 5. Sept., 1888.) 
'Attention is called to the necessity of irrigation in Texas and to the 
methods to he employed. Artesian wells, reservoirs, and side canals or 
ditches to streams are discussed. 
364. 
Mines worked in Western Texas. 
Geological and Scientific Bulletin, Vol. I, No. 12". Houston, 
April, 1889. 
A description of mines in the Trans-Pecos region. The “Shatter mine 
in the foothills of the south end of the Chanattee mountains.” “The mate- 
rial is a strongly ferruginous quartz ore, and calcareous free milling ore 
with an average assay value of from thirty to thirty- five ounces of silver. 
The galenites which seem to heoome more frequent in the deeper strata of 
the mines are held out and shipped to the smelters.” 
Description of the mill and processes employed. “The daily output may 
safely be estimated at from 1000 to 1400 ounces of silver. 
•K- * •K- -X- * » , * 
“The deeper strata of the tremendously large pocket which the com- 
pany is developing will no doubt consist of sulphurets, and I think it safe 
to predict that this deposit -will be found connected with the numerous 
lead deposits on the riverside of the south end of the Chanattee moun- 
tains.” 
The Hazel mine “in the Carrizo mountains, at the foot of the Sierra 
Diablo.” 
“The gangue is a strongly siliceous limestone, running without a defined 
wall in bright red sandstone. The gangue is over thirty feet wide at 
present, with a pay streak vein of -about twelve feet. The ore is silver- 
bearing eopper-glanz. Scarcity of water and fuel makes it impossible to 
work the whole width of the gangue, which, outside of the pay streak, 
carries about twelve to fifteen ounces of silver to the ton, too low a per 
eentage to ship the material without having it concentrated by washing or 
smelting to matte. Wire silver is frequently found with the ores in this 
mine, and pockets of still richer gray copper are struck now and then.” 
The Bonanza mine, in the Quitman mountains, ten miles from Sierra 
Blanca station. Vein, two to ten inches of Galena, bearing on an average 
thirty ounces of silver. The Alice Bay mine. Ores same as those of the 
Bonanza, viz. : silver bearing galena. “The vein of both mines runs in 
the contact between porphyry and granite.” 
