TABLE NO. 1. THE STATE UNIVERSITY OF IOWA— SWIMMING POOLS 
January 27, 1916 — March 31, 1920 
SWIMMING-POOL SANITATION 
261 
Acid Col- 
ony L. L. 
Agar 
-oj^ ' 
^ ^ ^ S On ^ ' 
1-H lO TO 
NQ to TO O ( 
55 Tj- i>,to < 
i>. < 
g 
•D*D 1 
samopQ PPV 
r-H OO-HNO < 
DO ' 
CM p O ^ ; 
Gas Formers 
Lactose Broth 
• • • O ^ On 
• • • On 
. • . uo ko 
632 
CM 
CO 
NO 
s 
to" 
to 
•o'D 01 ui snQ 
• • • lo On 
• • • CO 
: : :S 
SSui;UEI(J *OJ^ 
VO LO CM NO ' 
CM 00 M" On 
to 
790| 
29 
45 
84 
634 
00 
to 
•D'D X SEQ 
coOOr-4^ 
TO 
O O 00 
to 
CM 
CO 
CO 
TO 
Plain Agar at 20°C. 48 hrs. 
-0^ 
vO to CM On 1—1 
CM 00 to ON 
T- < to 
I 
On to CM 
CM 'cf- TO to 
ON 
ooo'oe< 
ooo^^ 
CO 
OO o CO 
CO 
175] 8521 2171 93| 45| 
ooo'oe 
— lOO'OZ 
CO 
to 
CM O 
8 
OOO'OZ 
— lOOTI 
109| 
O 
O00‘01-T001 
r>. 'Tj- TO 
CM CO to 
CM 
CO 
to 
to 
OOOMO£ 
to T— 1 O CO 
^ NO 
S' 
8 
OOS-TOI 
t>. CO O CO CO 
CM ON 
■M* O O to 
On 
3301 391 57117981 186| 245| 
OOLI 
CO O T-t ^ ^ 
1 
obo^ 
8 
Litmus Lactose Agar at 37°C. 24 hrs. 
sSupnij -o^^ 
Tf- ^ On 
CM n5 On 
r-t to 
1 
TO 
0001 < 
OOOOON 
CO 
CDn 
CO 
O O O 00 
00 
to 
OOOMOS 
OO O o-ct* 
CM 
OO Oto 
OOSHOl 
i—t to T-i On CO 
NO 00 
g 
0' 
1 
47 
83 
CO 
ooi-is 
0 
1 
5 
22 
38 
f-l to 
00 
NO 
■M- 
CO 
os-ii 
to ONt — 1 VOt^ 
I—t CO 
CM to TO O 
to 
|S9I 
i 
oi-i 
O CM 00 
— tCM 
-M- 
CO 
CO On T-I ON 
CM--ON 
CM 
to 
CO 
f 
VO 
CM 
•D-D X ui 
OUOJSJ S^EQ 
^ t>. O to 
o 
O 1-1 VO CM O 
^ ^ 
Filters alone 
“ & Chlorine 
“ & CuS04 
“ & CuS04+Cl 
“ CuSO^+hypo 
Totals 
Filters alone 
“ & Chlorine 
“ & CuS04 
“ CuS04+hypo 
Totals 
Totals of all Exam. 
Women 
Women 
Women 
Women 
Women 
Women 
Men 
Men 
Men 
Men 
Men 
Grand Total: 8279 Examinations. 
