. Bulletin. Natural history; Natural history. LONG TERM AVERAGE TEMPERATURE LONG TERM AVERAGE LONG TERM AVERAGE I I I I I I I I I I I I I I I I I ' LJ L_J I I I IâI I I I I I 2m(EQ:>2je)a;H>d2mQ:Q:>-2jtrJcLi->;ozcdQ^Q:>-z-i6 < iij<a <33r)iiJoOLj<tJJ<Q-<3 3r)LJoo uj<iij< a. i> 1956- 19 5 7- 1958- Fig. 10.âTemperature and precipitation deviations from the long-term averages in the northern, central, and southern zones of Illinois during and immediately preceding the years of the bird surveys of Please note that these images are extracted from


. Bulletin. Natural history; Natural history. LONG TERM AVERAGE TEMPERATURE LONG TERM AVERAGE LONG TERM AVERAGE I I I I I I I I I I I I I I I I I ' LJ L_J I I I IâI I I I I I 2m(EQ:>2je)a;H>d2mQ:Q:>-2jtrJcLi->;ozcdQ^Q:>-z-i6 < iij<a <33r)iiJoOLj<tJJ<Q-<3 3r)LJoo uj<iij< a. i> 1956- 19 5 7- 1958- Fig. 10.âTemperature and precipitation deviations from the long-term averages in the northern, central, and southern zones of Illinois during and immediately preceding the years of the bird surveys of Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Illinois. Natural History Survey Division. Urbana, State of Illinois, Dept. of Registration and Education, Natural History Survey Division


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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory