152 FLORIDA GEOLOGICAL SURVEY SIXTH ANNUAL REPORT. 



inch well and four twelve-inch wells running at this time. By the 

 end of March the water had returned practically to its normal 

 level and has since been kept under control. 



"Four of these drainage wells are located near the original sink 

 and have a uniform depth of 140 feet, a cavity several feet in 

 diameter having been reached at that depth. The fifth well is lo- 

 cated one-half mile west of the sink, and terminates in a porous 

 stratum at a depth of 340 feet." 



Since the completion of these wells by the city a number of 

 other drainage wells have been put down by individuals, used largely 

 to reclaim trucking and farming lands. 



One of these drainage wells near Orlando developed recently 

 the unusual phenomenon of spouting. The well is located three 

 miles north of Orlando on land belonging to Charles T. Myers. 

 It was drilled in 1907 jointly by Mr. Myers and Messrs. McNeal 

 ard Davis, the latter gentlemen having the property leased for 

 farming purposes. The well is twelve inches in diameter and has 

 a total depth of 260 feet, is cased 60 feet, and it is located at the 

 edge of a small lake. The level of permanent underground water 

 cii this locality is 2)3 ^^^t from the surface. Trucking is carried on 

 around the border of the lake and the well is intended, by carrying 

 off the surplus water, to prevent the lake from rising above a given 

 level, since to do so would flood the farming land. The well is 

 similar in character to the other drainage wells of this locality and 

 as in the case of most of the other wells, terminates in a cavity in 

 the limestone. 



The well was first seen by the writer October 4, 19 10. At this 

 time the water of the lake stood a few inches above the level of the 

 pipe and the well was receiving water at much less than its full car- 

 r3^ing capacity. At intervals of a few minutes the well would re- 

 verse itself and spout, throwing a column of water into the air. 

 The spouting comes on gradually. First the well ceases to receive 

 Vv'ater and begins bubbling; the column of water follows, rising'with 

 considerable force to a height of twenty feet or more above the 

 surface, the spout occurred with tolerable regularity at intervals 

 or four minutes. Mr. R. D. Unis, who has charge of the farm, 

 states, however, that the intervals between spouts vary from two 

 to fifteen minutes, being probably influenced by varying conditions 

 under which the water enters the well. (Fig. 37). 



Although drilled about three years ago and receiving water 

 more or less constantly since that time the phenomenon of spout- 

 ing developed for the first time on September 26, 1910, the first 

 spouting having occurred about eight o'clock on the morning of that 



