CLASS IV. 2. % 4. OF ASSOCIATION. 4 1 5 



than men, is attended with cold extremities without lever, and 

 is distinguished from the stone of the bladder by the regularity 

 of its periods, and by the pain being not increased after making 

 water. 



On introducing the catheter sometimes part of the urine will 

 come away and not the whole, which is difficult to explain; 

 but may arise from the weakness of the muscular fibres of the 

 bladder; which are not liable suddenly to contract themselves 

 so far as to exclude the whole of the urine. In some old peo- 

 ple, who have experienced a long retention of urine, the blad- 

 der never regains the power of completely emptying itself; and 

 many who are beginning to be weak from age can make vvai'jr 

 a second time, a few minutes after they supposed they had emp- 

 tied the bladder. 



I have believed this pain to originate from sympathy with 

 some distant part, as from ascarides in the rectum, or from piles 

 in women; or from caruncles in the urethra about the caput 

 gallinaginis in men; and that the pain has been in the glans or 

 clitoris by reverse sympathy of these more sensible parts with 

 those above mentioned. 



M. M. Venesection. Opium in large quantities. Warm 

 bath. Balsams. Bark. Tincture of cantharides. Bougie, and 

 the treatment for haemorrhoids. Leeches applied to the sphinc- 

 ter ani. Aerated alkaline water. Soap and sal soda. Opium 

 in clysters given an hour before the expected return. Smoke of 

 tobacco in clysters. Arsenic. 



4. Dolor termini intestinalis ductds choledochL Pain at the in- 

 testinal end of the gall-duct. When a gall-stone is protruded 

 from the gall-bladder a little way into the end of the gall-duct, 

 the pain is felt at the other end of the gall-duct, which termi- 

 nates in the duodenum. For the actions of the two terminations 

 of this canal are associated together from the same streams 

 of bile passing through them in succession, exactly as the two 

 terminations of the urethra have their actions associated, as 

 described in Species 2 and 3 of this genus. But as the in- 

 testinal termination of the bile-duct is made more sensible for 

 the purpose of bringing down more bile, when it is stimulated 

 by new supplies of food from the stomach, it falls into violent 

 pain from association; and then the pain on the region of the 

 gall-bladder ceases, exactly as above explained in the account 

 of the pain of the glans penis from a stone in the sphincter of 

 4he bladder. 



The common bile-duct opens into the intestine exactly at 

 what is called the pit of the stomach; and hence it has some- 

 times happened, that this pain from association with the senga- 



