_. .ter with eyes, but by observing thy . _ sale: 
3 body through other sense-organs so situated ty 
lead tosknowledge of only his own body’s tempera- 
It is important to note that for efficient knowledge 
s own body-temperature, John does not use the sense 
vach peculiar to him, but that available for all ob- 
‘s. He identifies and measures his ‘feverishness’ by 
ing himself as he would study any other animal, by 
ometer and eye. 
the case of the toothache the students proceed as 
, except that they use John’s gestures, facial ex- 
n, cries and verbal reports, as well as his mere 
structure and condition. They not only observe the 
in his teeth, the signs of ulcer and the like, but they 
x him, tapping a tooth, “Does it hurt?” ‘‘How 
sit hurt?” “Does it hurt very much?” and the 
ohn, if their equal in knowledge of dentistry, would 
same methods, testing himself, asking himself 
is and using the replies made by himself to himself 
speech. But, as with temperature, he would ge 
- his identification of the toothache, from a source 
ble for the others, the sense-organs in his teeth. 
rorth while to consider how they and he would pro- 
an exact identification or measure of the intensity 
iothache such as was made of his stature or body- 
ture. First, they would need a scale of toothaches 
ig intensities. Next, they would need means of 
ig the intensity of his toothache with those of 
ale to see which it was most like. Given this scale 
ans of comparison, they would turn John’s attention 
2 original toothache to one of given intensity, and 
the two, both by his facial expression, gestures and 
1 by, the verba)) ‘ts made. john would, 
we ‘Sress 
a me ink & Smith Co, 
