blocked up the gallery to within about 150 ft. of Shaft No. 1. The interior timbering probably collapsed, due to cavings and disturbance in the river-bed during the period of maximum flood, but no explorations have been possible on account of the great quantity of water still coming through (at present more than 650 liters per sec.). For this reason the work of driving the gallery, as well as lining Shaft No. 1, has been suspended.
Plate XXVIII, Fig. 2.—View of Santa Catarina River in Flood, on August 28th, 1909.
Plate XXXI, Fig. 1.—Flush-Tank Carried Down by Flood of August 27th-28th, 1909.
Plate XXXI, Fig. 2.—View Showing Scouring Effect Of Flood On San Geronimo Aqueduct.
Plate XXXII, Fig. 1.—View of Santa Catarina River After the Flood.
