. Bulletin. Natural history; Natural history. 9 I RM. 5 RM. 9 RM. I 5 9 I PM. READINGS AUGUST 12-13. 5RM. 12 _!_ (/> / Q; in zr D O Q. 9 U a. -1 a to tf) UJ a. 7 9 IRM. 5RM. 9 RM. I 5 9 IRM. 5RM. Fig. 29.—Air temperatures and pressures in one greenhouse-grown elm artificially infected with wetwood were recorded during two 34-hour periods. Pressure in the greenhouse tree followed a diurnal cycle. When the air temperature did not go much above the optimum tem- perature for the wetwood organism, maximum pressure occurred at 1:15 When the air te
. Bulletin. Natural history; Natural history. 9 I RM. 5 RM. 9 RM. I 5 9 I PM. READINGS AUGUST 12-13. 5RM. 12 _!_ (/> / Q; in zr D O Q. 9 U a. -1 a to tf) UJ a. 7 9 IRM. 5RM. 9 RM. I 5 9 IRM. 5RM. Fig. 29.—Air temperatures and pressures in one greenhouse-grown elm artificially infected with wetwood were recorded during two 34-hour periods. Pressure in the greenhouse tree followed a diurnal cycle. When the air temperature did not go much above the optimum tem- perature for the wetwood organism, maximum pressure occurred at 1:15 When the air temperature had risen above the optimum temperature for the organism by 9:00 , maximum- pressures occurred between 8:30 and 11:00 Minimum pressures occurred between 7:05 ^i and 12:10 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
