816 Prof. It. It. Ramsey on the Variation of the 



Variation of Emanation Content of Certain Springs 

 near Bloomington, Indiana. Expressed in curies per litre. 





Hottle Spring. 



111. Cent. Spring. 



Date. 



Temp. 



Flow. 



Curies. 



Temp 



Flow. 



Curies. 



Sept. 24 



13° C. 





650 xlO -12 



13° O. 





445 xlO -12 



Oct. 16 



13 





695 



12-8 





166 



Oct. 23 



133 





700 



13 





120 



Oct. 30 



13 



10000 



665 



12-7 



13000 



20 



Nov. G 



13 





650 



12-6 





40 



Nov. 13 



13 





705 



13 





20 



Nov. 20 



13 





520 



13 





20 



Nov. 26 ... 



13 





550 



13 





33 



Dec. 3 



13 





535 



13 





60 



Dec. 11 



13 





510 



13 





20 



Dec. 18 



13 





450 



13 





00 



Dec. 26 



13 



10000 



445 



13 



5000 



00 



Jan. 1 



13 



20000 



560 



12-8 



32000 



40 



Jan, 7 



12-6 





1000 



12 



135000 



340 



Jan. 14 



13 





770 



13 



40000 



270 



Jan. 21 



13 





680 



12-8 



40000 



100 



Jan. 28 



12 





610 



12 



32000 



20 



Feb. 4 



12 



62000 



850 



12 



250000 



750 



Feb. 11 



12 



40000 



875 



12-6 



125000 



166 



Feb. 18 



11-8 





915 



12 



100000 



285 



Feb. 25 



11-3 





890 



12 



75000 



170 



Mar. 5 



11-5 





1010 



11-9 



100000 



140 



Mar. 11 



11-7 





900 



12 



90000 



220 



Mar. 18 



11-3 





920 



12 



62500 



160 



Mar. 25 



11-3 





800 



12 



40000 



90 



April 1 



11 





670 



12 



30000 



45 



April 8 



11-3 





690 



12 



28000 



60 



April 15 



11-5 





830 



12 



30000 



60 



April22 



12 





890 



12 



30000 



256 



April 28 



12 





750 



122 



25000 



410 



May 7 



11-4 





1140 



12 



400000 



365 



May 14 



11-9 





825 



12-4 



60000 



365 



May 21 



11 





1050 



123 



42000 



25 



May 28 



12 





1340 



121 



500000 



750 



June 3 ...... 



11-6 





1420 



12 



400000 



820 



June 10 



11-8 





1120 



12 



70000 



355 



June 25 



12 





1280 



12-5 



30000 



715 



One, the Hottle spring, is due north of the square, near 

 the corporation line of the city of Bloomington, latitude 

 39° 10'-6, longitude 86° 32'«3. Elevation 770 feet. Bloom- 

 ington Quadrangle U.S. Geological Topographic Map. The 

 other, the Illinois Central spring, is due west of the square a 

 little beyond the corporation line, near the 111. Cent. It. It. 

 pumping station. Latitude 39° 10'' 1, longitude S6° 33'*2. 



