IOWA ACADEMY OF SCIENCE 
35 
§ S 
s s 
S S g ? s 
S3 s ss s 
I 
s 
g 
■« 
i 
s 
i i 
« s 
i i 
g i 
s § 
I 3 
I i 
;; 
s ' i 
.A.1; rH 
it s s a i 
i «| s 
AT 
liisiiiilli II 
o c;§ c o GO o I o ;! ilo Is;? o o !§ 
s 
6 
13 
5 
6 
5 
15 
^ 8 
i sill SI S 
1 1 
13-3 
11-26 
11-28 
13-9 
11-28 
11-11 
11-11 
10 - 24 
9-34 
11 - 11 
11-11 
11-18 
11-18 
13-3 
13-3 
13-3 
11-35 
13-13 
^ 5 ^ 
