Crry WATER. 
Curies 
Location, Date. Temp. C. Per 
Liter. 
Bloomington, Ind......... ; ne 2. 522)| Heb, 24, 1914, oe 27.X10-2 
Bloomington, Ind............. : fe eo Mian 2, Lore: Hot. 41. 
Indiana University. ... ; .....| Mar. 2, 1914. Dies aoe 
@Oxford'Ob10...2...5..2... ELIA 93 ; Aug. 12, 1914. 19° 70. 
WintoniOrty iM. 2.2 5. eet PEL: | Aug. 18, 1914. 19° | 45. 
(Ceilits), Oli toler as an eaoee eRe ears aay et: sip | Aug. 20, 1914. PANS NC 
| 
WELLs. 
i 
Sem iMoming Sum) OWIO).... 0. <2 oe cca n ee ae San EE a ae Aue eer. tO1e | jays 95. 
J.S. R., Farm. One mile north Morning Sun, Ohio.... Aug. 27, 1914. !. ae A LOS 
C. McQ. One milesouth Morning Sun, Ohio........... Sept. 2, 1914. 13° |200. 
Forest Park. Six miles east Union City, Ind...... . Aug. 18, 1914. | 12° {185 
AIDE C ESO MANN ENLEL atl fatusdsicdasncysleise ya aatkeises earae ns aa RPE Seas : 6. 
“Ey 0 Slovo at i at Oa et pee Pinel Se ee oe ..| 00. 
In some papers the radioactivity of springs is given in Mache units. 
One mache unit = 364. X 10-™ curies per liter. (Le Radium, Vol. XI, p. 5, 
1914.) In several papers higher ratios have been used, 500. X 10-!2 in some 
cases. 
The radioactivity of these springs is not great, but it is high compared 
with ordinary springs of some localities. There is a great deal of variation 
from spring to spring, but this may be explained by assuming that some em- 
anation has been given up before issuing from the ground. The variation of 
the same spring from time to time is dealt with in another paper. 
Department of Physics, 
Indiana University, December 21, 1914. 
