230 BULLETIN OF WISCONSIN NATURAL HISTORY SOCIETY. VOL. 2. NO. 4. 
Beloit, Wis., May ii, 1900. 
Meteorological Data — (Taken same as for Madison). 
Wind — South to southwest, velocity 10. 
Temperature — 69. 5°. 
Atmosphere — Partly cloudy toward morning. 
Total number of birds observed from 8 :oo P. M. to 2 :oo 
A. M.— 134. 
8:00 to 8:15 — in 4.8 — out 8.7. 
in 2.5 — out 8.0 — Swift — Size 2 — . 
in 2.8 — out I.I — Size i-|-. 
in 3.0 — out 7.6 — Size 2. 
in 5.2 — out 7.1 — Very Swift — Size i — Total 6. 
8:15 to 8:30 — in 4.0 — out 7.3 — Very swift — Size i. 
in 4.8 — out 5.5 — Size 3-|-. — Out of focus, 
in 4.0 — out 5.8. 
in 2.0 — out 8.0 ) -c^ 11 . u 11 
^ o /roUowmg^ each other closely, 
m 2.0 — out S.o ) ^ ^ 
in 3.0 — out 7.5 — Slow — Size i. 
in 3.0 — out 7.0. 
in 2.5— out 8.3. 
in 5.0 — out 5.7 — Slow — Size 3 — Seemed very 
close. 
in 3.1 — out 7.6 — Slow — Size 2. 
in 3.8 — out 7.2 — Size i — Very distant. 
in i.o — out 5.5 — Out of focus, 
in 2.5 — out 8.2 — Size 2 — Total 13. 
8:30 to 8:45 — in 2.0 — out 8.0 — Size i — Total i. 
8 45 to 9 :oo — in 0.0 — out 0.0 — Total o. 
9:00 to 9:15 — in 0.0 — out 0.0 — No observations made. 
9:15 to 9:30 — in 0.0 — out 0.0 — No observations made. 
9:30 to 9:45 — in 3.7 — out 8.2 — Size 2 — Slightly out of focus. 
in 4.2 — out 6.8 — Size 2 — . 
in 4.2 — out 5.9 — Size 3. 
in 4.0 — out 7.8 — Very swift — Size i — . Total 4. 
9:45 to 10:00 — in 2.2 — out 7.6 — Size 2. 
in 4.2 — out 7.6. 
in 2.0 — out 6.0 — Size 3 — Total 2. 
10:00 to 10:15 — in 3.9 — out 6.6 — Size 2. 
in 8.3 — out 5.2 — Out of focus, 
in 3.3 — out 5.8 — Swdft — Size 2 — i In field at 
in 3.3 — out 5.8 — Swift — Size 2 — ] same time, 
in 4.3 — out 8.7 — Swift — Size 2 — . Total 5. 
