Recording Thermometers for Clinical Work 



565 



this particular patient, with different thermometers and 

 different recording instruments. The dip is not always 

 present. The record reproduced in fig. 13, which shows an 

 extremely steady temperature, was taken on the same patient, 



1Z Xci.m. L, 6 



Axillary Thermometer D, on Slide-wire Recorder, 2 cm./deg. 



with the same recorder and thermometer, but on a scale of 

 2 cm. per 1°C, similarly reduced in reproduction. The 

 current employed in both cases was the same as with the 

 thread recorder for records 8 and 9, and the thermometer 

 was attached in precisely the same way. The only effect of 

 reducing the scale with the slide-wire recorder would be to 

 make the instrument proportionately quicker in responding, 

 which cannot account for the greater smoothness of the 

 record. A record taken simultaneously on the same patient 

 with the rectal thermometer and thread recorder, is repro- 

 duced in fig. 14. The variations shown are very slight, and 

 the differences between the two thermometers are such as 

 would be likely to exist in different parts of the body. 











Fig 



. 14. 











37° 





















3fe° 





























10 1X Jla/m.. A 6 a 



Rectal on Thread Recorder (simultaneous with record 13;. 



The records above given are sufficient to show, if proof 

 were needed, that accurate clinical records of temperature 

 on a fairly open scale under practical conditions may readily 

 be obtained by the aid of electrical resistance thermometers, 

 with either of the recording instruments above described. 

 The recording instruments are standard types, which have 

 been thoroughly tested by the experience of a great variety 

 of users for many years, and are not likely to give trouble. 



