38 PHYSIOLOGY CHAP. 



The results of these researches were published by Kiesow in 

 a number of tables, of which we can only cite the final conclusions. 

 In these Kiesow compared the relative sensibility of the different 

 cutaneous areas which he examined (arranged in order of increas- 

 ing sensibility), according to the mean liminal values obtained 

 and to the number of the touch spots per surface unit. 



Kiesow started from the region in which sensibility to contact 

 or pressure is lowest, which he designates as 1, and on comparing 

 all the other regions to this, obtained the following results for 

 their mean liminal values : 



Back, median line, level of 3rd dorsal vertebra . . . . .1-00 

 Abdomen, white line, midway between umbilicus and pubic symphysis . 1-06 



Thorax, median line, level of 5th intercostal space 1-24 



Thorax, left axillary line, level of 5th intercostal space . . . .1-33 

 Thorax, median line, level of 4th intercostal space . . . .1-39 

 Thorax, left axillary line, midway between xiphoid and umbilicus . 1-79 



Left patella, middle of 1-95 



Left leg, in the middle of the anterior surface . . . . .1-99 

 Back, median line, level of antero-superior iliac spine . . . . 2-23 

 Left thigh, anterior surface, about 1 cm. from edge of patella . .2-31 



Back, median line, level of 7th cervical vertebra 2-72 



Thorax, median line, level of 2nd intercostal space . . . .2-77 



Left leg, calf 2-96 



Left arm, middle of flexor surface 3-01 



Left wrist, stiloid process of ulna ........ 3-05 



Left elbow 3-09 



Left forearm, upper part of flexor surface . . . . . .3-12 



Left wrist, dorsal surface, middle line . . . . . . . 3-26 



Dorsum of left foot . . 3-38 



Left wrist, radial surface . . . 3-49 



Left forearm, middle of flexor surface 3-80 



Wrist, 2-7 cm. above the joint 3-80 



Left upper eyelid 7-16 



Forehead (glabella) . 7-54 



For the tip of the tongue, red part of lips, and tips of fingers, 

 Kiesow, starting from the same value of 1, and taking the 

 minimal liminal values (not the mean, as above), obtained the 

 following results : 



Finger-tips of left hand .......... 3 



Edge of lower lip, middle part ........ 50 



Tip of tongue 60 



Kiesow obtained the following number of touch spots in the 

 surface unit (1 sq. cm.), starting from the region in which they are 

 fewest ( = 1 ) : 



Leg, middle of anterior surface 1-00 



Calf. 1-16 



Left patella, middle . . v 1-60 



Left forearm, middle of flexor surface . . . . . . .1-85 



Left arm, upper part of flexor surface . . . . . . .2-00 



Left elbow . ' 2-43 



