They live in villages on the hillsides or summits.
When the rocks are concealed by detrital material he looks for outcroppings on steep hillsides, on the crests of hills or ridges, in the beds of streams, in landslides, in the roots of overturned trees, and in wells, quarries, roadcuttings and other excavations.
Search should be made in the beds of streams and on the hillsides for " float mineral " or " shoad stones," fragments of rocks and minerals known to be associated with and characteristic of the deposits.
The city is built in a bowllike depression of the great central plateau, and the drainage from the surrounding hillsides has produced a dangerously insanitary condition, from which one or two virulent fever epidemics have resulted.
With a level and a clamp; the level is fixed at the correct angle for drift; if the sight (as is especially liable to be artillery the case on steep hillsides) is tilted away from the angle sights.