CLASS IV, 1. 2. OP ASSOCIATION, 373 



ORDO I. 



Increased Associate Motion*. 



GENUS II. 

 Catenated with Sensitive Motions. 



THE primary links of the associated actions of this genus are 

 either produced or attended by painful or pleasurable sensation. 

 The secondary links of the first ten species are attended with 

 increased motions without inflammation, those of the remainder 

 are attended with inflammation. All inflammations, which do 

 not arise in the part which was previously torpid, belong to this 

 genus; as the gout, rheumatism, erysipelas. It is probable many 

 other inflammations may, by future observation, require to be 

 transplanted into this class. 



The circles of sensitive associate motions consist chiefly of the 

 excretory ducts of the capillaries and of the mouths of the ab- 

 sorbent vessels, which constitute the membranes; and which 

 have been induced into action at the same time; or they consist 

 of the terminations of canals; or of parts which are endued 

 with greater sensibility than those which form the first link of 

 the association. An instance of the first of those is the sympa- 

 thy between the membranes of the alveolar processes of the jaws, 

 and the membranes above or beneath the muscles about the 

 temples in hemicrania. An instance of the second is in the 

 sympathy between the excretory duct of the lachrymal gland, and 

 the nasal duct of the lachrymal sac. And an instance of the 

 third is the sympathy between the membranes of the liver, and 

 the skin of the face in the gutta rosea of inebriates. 



SPECIES. 



1. Lachrymarum fiuxus sympatheticus. A flow of tears from 

 grief or joy. When the termination of the duct of the lachry- 

 mal sac in the nostrils becomes affected either by painful or 

 pleasurable sensations, in consequence of external stimulus, or 

 by its association with agreeable or disagreeable ideas, the mo- 

 tions of the lachrymal gland are at the same time exerted with 

 greater energy, and a profusion of tears succeeds by sensitive as- 

 sociation as explained in Sect. XVI. 8, 2. 



In this case there exists a chain of associated actions, the se- 

 fretion of the lachrymal gland is increased ]?y whatever stimu- 



