. Science . F/tHK. Fig. 1. Eelation between Eoom Temperatureand Average Rectal Temperature of all subjectsat end of day. as, for example, from 68° to 75° with 50per cent, relative humidity in both a hot room (86°—80 per cent, relativehumidity) the rectal body temperature usu-ally rose during the period of observation;in a warm room (75°—50 per cent, relativehumidity) it remained on the whole aboutconstant; in a cool room (68°—50 per cent,relative humidity) it fell. The averagebody temperatures attained under these three room conditions were °, °and °, respectively. So t
. Science . F/tHK. Fig. 1. Eelation between Eoom Temperatureand Average Rectal Temperature of all subjectsat end of day. as, for example, from 68° to 75° with 50per cent, relative humidity in both a hot room (86°—80 per cent, relativehumidity) the rectal body temperature usu-ally rose during the period of observation;in a warm room (75°—50 per cent, relativehumidity) it remained on the whole aboutconstant; in a cool room (68°—50 per cent,relative humidity) it fell. The averagebody temperatures attained under these three room conditions were °, °and °, respectively. So the recliningheart rate rose in the hot room to a finalaverage of 74 beats per minute and fellin the cool room to a final average of 66beats (the warm condition not being com-parable in this case). I use the terms hot,warm and cool throughout for the threetemperatures and humidity combinations. Fig. 2. Eelatioa between Boom Temperatureand Average Eeelining Pulse Eate of all subjectsat end of day. (High value at 75° due to pre-ceding physical work not duplicated at other tem-peratures.) cited above. The increase of heart rate onpassing from a reclining to a standingposition became greater (by an average of7 beats) during a sojourn in the hot room;while it became less by an average of 3beats in the warm room and by an averageof 7 beats in the cool room. The systolicblood pressure was slightly decreased in 628 SCIENCE [N. S. Vol. XLI. No. 1061 the hot room (112 mm. against 116) andthe Crampton value was markedly de-creased, averaging 35 for the hot room, 45for the warm room and 60 for the cool room. D/FFERENCE INPcilS£-RATE-/NCflFAS£-ON-STANDi/^eAT BESMN/MG ANP ENO OFPEff/Pff ^Z
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