394 E. OCRDÓNEZ. 
copper carbonates and at very shallow depths both pyrite 
and chalcopyrite are found. This condition facilitated the 
operations of the makers of “Magistral” in that they were 
not compelled to go far underground for ores suitable for 
their purposes. 
Considered individually, the Magistral District, as 
known to date, is not very extensive. The six or seven prin- 
cipal veins are more or less parallel to each other and strike 
in a Northwesterly direction for a distance of two or three 
kilometers. All lie within a strip of not more than two ki- 
lometer in width. 
The Magistral District is apparently the Northeastern 
extremity of a quite extensive copper belt which extends to 
the Southwest as far as the Pacific Coast Range of the Sie: 
rra Madre, and on which the Ayutla, San Martín, Unión de 
Tula and Cacoma Districts lie. These Districts have been 
cited recently as showing copper ore in small bunches as 
well as in broad gossans and of distinct prospective value. 
Very little is known however about this lone copper belt as 
no important development has been undertaken as yet. and 
the belt will be handicapped for a long time to come on 
account of lack of transportation through a very moun- 
tainous country. 
The Magistral District lies in a hilly, though widely 
opened, eroded depression enclosed between two ridges,: 
which, starting from near the summit of the lofty peak call- 
ed La Tetilla (2,800 Meters above sea-level), lead to the 
East. The flanks of this mountain are covered with a thick 
sheet of basaltic lava, patches of which are also seen within 
the eroded depression, as remnants of the original inclined 
plateau, which previous to erosion uniformly surrounded 
the lofty peak. 
The Magistral Copper Deposits may be compared in gen- 
