196 
IOWA ACADEMY OF SCIENCE 
been determined. It may be said that a large proportion of ad- 
vertised lithia waters do not contain more than a trace of this 
element, and sometimes none at all. 
Table (9) shows heavily mineralized waters, the kind we want 
to avoid and case out in Iowa well operations. In the best of them 
one would have to drink 350 liters of water and with it nearly a 
kilogram of other mineral matter to get a dose of lithium. 
While Iowa has few rivers or lakes that are capable of affording 
good and abundant water supplies, and deep drillings are not 
markedly successful in a large portion of the state, there is a large 
compensation in the fact that the state is mostly covered by thick 
drift which in many localities may supply excellent water and 
abundant for smaller towns and for farm use. There are great 
numbers of drift wells from 50 to 300 feet deep. The quality of 
their water varies widely with locality. Table (10) shows the 
quality of the waters of a few such shallower wells taken at ran- 
dom. In several sections the wells are flowing. 
The subject of the shallower and artesian wells will be discussed 
in a future communication. 
TABLE I. 
From Waukon West, Second Tier of Counties. 
Stratum. Depth. 
Solids. 
Waukon 
600 
282 
McGregor . . . 
520 
484 
Calmar 
1223 
306 
Charles City. . 
Basal S. S 
1588 
282 
Mason City. . . 
1277 
350 
Algona 
1050 
540 
Emmetsburg . 
965 
410 
Sanborn 
1256 
2189 
Hull 
1256 
2364 
TABLE II. 
From Dubuque West, Fourth Tier of Counties. 
Stratum. 
Depth. 
Solids. 
Dubuque .... 
Basal S. S 
900-1300 
270 
Manchester . 
1870 
494 
Waterloo . . . 
.1170 
459 
Webster City, 
..........1250 
1023 
Manson . . . . , 
1250 
670 
Holstein .... 
2004 
1491 
Sioux City . . 
2011 
1986 
