With Increased Action of the Muscles

Ordo II.

Decreased Sensation.

Genus I.

With decreased Action of the general System.

Species.

. Stultitia insensibilis. Folly from insensibility.

. Tædium vitæ. Irksomeness of life.

. Paresis sensitiva. Sensitive debility.

Genus II.

With decreased Actions of particular Organs.

Species.

. Anorexia. Want of appetite.

. Adipsia. Want of thirst.

. Impotentia. Impotence.

. Sterilitas. Barrenness.

. Insensibilitas artuum. Insensibility of the limbs.

. Dysuria insensitiva. Insensibility of the bladder.

. Accumulatio alvina. Accumulation of feces.

Ordo III.

Retrograde Sensitive Motions.

Genus I.

Of Excretory Ducts.

Species.

Motus retrogressus Retrograde motion.

. —— ureterum. —— of the ureters.

. —— urethræ. —— of the urethra.

. —— ductus choledoci. —— of the bile-duct.

Class II.

DISEASES OF SENSATION.

Ordo I.

Increased Sensation.

Genus I.

The actions belonging to this genus are those which are immediately excited by the sensations of pain or pleasure, but which are neither followed by inflammation, nor by convulsion. The former of which belong to the subsequent genera of this order, and the latter to the class of voluntary motions.

The criterion between the actions, which are the immediate consequence of painful sensation, and convulsive actions properly so called, consists in the former having a tendency to dislodge the stimulating cause, which induces the painful sensation; and the latter being exerted for the purpose of expending the sensorial power, and thus dulling or destroying the general sensation of the system. See Class III. 1.

There is a degree of heat produced in the affected part by these sensitive actions without inflammation, but in much less quantity than when attended by inflammation; as in the latter there is a production of new vessels. See Sect. XXXIII. 2. 3.

Some of the species of this genus cannot properly be termed diseases in their natural state, but become so by their defect or excess, and are here inserted to facilitate the explanation of the others.