540 PHRENOLOGY: OLD AND NEW. 



pinching, or pungent heat sufficient to cause lively manifestations 

 of sensation when applied to the right side of the body, failed in 

 general to elicit any reaction whatever on the left side, whether 

 face, hand, or foot. Only occasionally when the stimulus was 

 intense or long continued, did reaction at all ensue. This most 

 remarkable absence of response of any kind rendered the fact of 

 annihilation of tactile sensibility almost completely proved without 

 further evidence." 



An alteration in the character of the Movements capable 

 of being executed by the left limbs also existed, which, as 

 Ferrier thinks, was of the kind " due to the loss of tactile 

 sensation by which movements are guided." It seems 

 almost more than doubtful, however, in the face of much 

 recent evidence, whether 'ataxy' of Movement is neces- 

 sarily or even ever occasioned by mere loss of cutaneous 

 sensibility (see pp. 582, 700). 



But a digression becomes needful at this point, on 

 account of the complex nature of Tactile and Common 

 Sensibility, and their relations to the so-called sixth or 

 ' Muscular Sense.' It is highly important that definite 

 notions should, if possible, be arrived at in regard to 

 the latter endowment, in order that we may learn how far 

 anything worthy of the name exists, apart from the 

 various modes of Tactile and Common Sensibility and 

 also, incidentally, what mode of sensibility it is by which 

 Movements are principally guided. 



Under the head of Tactile and Common Sensibility are 

 to be included many different kinds of Impressions more 

 or less distinct from one another. Thrown into a tabular 

 form they may be thus arranged : 



f 1. Tactile impressions proper. 



a. From Shin and j 2. Impressions of contact and pressure. 

 Mucous Hem - ] 4. Impressions of temperature. 

 branes. (^ 3. Impressions of pain. 



