Fluctuations of Ground Water. 



273 



Wednesday 



/O /22 + 6 8 IOM Z 



FIG. IDS. Showing fluctuations In the level of water In a well and simul- 

 taneous fluctuations in the rate of discharge from a spring half a mile 

 distant. 



"f<afr / /^ / I (/IMieW fll Imffrr^TJAi i L U- 



*{H tmTft+w iff ffif iff 'fiWffJmftffi 



t'iu. 106. Showing sudden and large fluctuations In the level of water 

 in a well, during times of thunder showers, due to sudden changes In 

 pressure. 



