THIRD ANNUAL REPORT. PL. .o.

Fig. I.-Exposure of hardpan along Black Bluff on Clarks Creek, eight miles from Fernandina.

Fig. 2.-Artesian well used for power belonging to H. T. Bowden, Melbourne, Brevard County. The water from the artesian well affords
power by which water is pumped from a near-by shallow well.

FLORIDA GEOLOGICAL SURVEY.