248 
BULLETIN OF WISCONSIN NATURAL HISTORY SOCIETY. VOL. 2. NO. 4. 
in 
2.0— 
-out 
I.O. 
— Medium slow. 
Size 3. 
in 
3-0- 
-out 
I.O.- 
— Fast. Size 2- - 
Wing-strokes 
seen. 
in 
2.0— 
-out 
4.0. 
— Fast. Size 2-\- 
. Total 5. 
-in 
3-0- 
-out 
I.O. 
— Fast. Size i. 
in 
4.2- 
-out 
4.8. 
— Fast. Size 2. 
in 
I.T — 
-out 
2.T. 
— Slow. Size I. 
in 
3-6- 
-out 
2.2. 
— Slow. Size I. 
This and all 
preceding out of focus, 
tal 4. 
To- 
10:00 to 10 :t 
in 
3-5— out 
— Fast. 
Size I. 
in 
3-5— o^^t 
2.5-- 
-Fast 
Size I. 
in 
4.3 — out 
2.6.- 
-Fast. 
S'Z- I. 
in 
4.3— out 
2.6.- 
—Fast. 
Size I. 
in 
2.9 — out 
2.2.- 
—Fast. 
Size T 
in 
3-5— out 
—Fast. 
Size I 
in 
3.0 — out 
4.1.- 
—Fast. 
Size I. 
in 
3.0 — out 
I.O.- 
—Fast. 
Size I. 
in 
3.0 — out 
I.O.- 
— Fast. 
Size I. 
in 
4.1 — out 
I.O.- 
—Fast. 
Size I. 
in 
3.0 — out 
2.I.- 
— Fast. 
Size I 
in 
3-5— o^^t 
4-7-- 
—Fast. 
Size I. 
in 
3.5— out 
I-5-- 
—Fast. 
Size T. 
in 
3.7— out 
1.7.- 
—Fast. 
Size I. 
in 
3.0 — out 
I.O.- 
—Fast. 
Size I 
10:15 to 10:30 — in 4.0 — out 4.5 
in 3.9 — out I.I 
in 3.7— out 1.3 
in 3.2 — out 1.9 
in 3.7 — out 1.9 
in 3.0 — out 1.2 
ill 3-5— o^it 2.7 
in 3.7 — out 1.9, 
in 2.9 — out 1.2 
in 3.7— out 1.5 
in 2.1 — out I.I 
in 2.1 — out 4.5 
10:30 to 10:45 — in 2.2 — out 4.9- 
This and all 
preceding out of focus. To- 
tal 15. 
Fast. Size i. Out of focus. 
-Size I. Out of focus. 
-Size 2. Wing-strokes seen. 
-Size I. Out of focus. 
-Size I. Otit of focus. 
-Fast. Size 2. 
-Fast. Size i. Wing-strokes 
seen. 
-Medium. Wing-strokes seen. 
-Fast. Size 2. 
-Fast. Size i, 
-Fast. Size 2. 
-Fast. Size 2. 
Total 12. 
■Fa.'^t. Size 2. 
seen. 
Out of focus. 
Out of focus. 
Wing-strokes 
