433 



SECTION XIII, 



DISEASES OF THE LIVER AND SPLEEN. 



ACUTE HEPATITIS. 



HEPATO-PERITONITIS. 



COMPLICATED HEPATITIS. 



CHRONIC HEPATITIS. 



JAUNDICE. 



RUPTURE. 



WORMS. 



HYDATIDS. 



BILIARY CALCULI. 



SPLENITIS. 



HYPERTROPHY. 



OSSIFICATION. 



RUPTURE. 



CARCINOMA. 



MELANOSIS. 



PRELIMINARY OBSERVATIONS. 



Aware of the coDnexion between the mechanism and 

 economy of these two glands_, it is not unnatural to suppose 

 that some sort of sympathy should be found to subsist be- 

 tween them under disease : indeed, the coincidence is ac- 

 knowledged by Hurtrel d^Arboval, and likewise seems to 

 have received the assent of Volpi, whose arrangement I 

 have followed in the present Section. Few and infrequent, 

 however, as their diseases are, and limited as our present 

 knowledge is concerning them, this is a point I hardly dare 

 insist upon. 



The Liver, a part often diseased in men, is but seldom 

 so in horses. Professor Coleman, in his Lectures, has 

 adduced as one reason for this, the complication of the 

 biliary apparatus in man, and its comparative simplicity in 

 the horse : the latter having no gall-bladder. Hurtrel 

 d'Arboval takes another view of the subject, and ascribes the 

 diflPerence to the little cellular tissue entering into the com- 

 position of the horse^s liver. May we not also take into the 

 account, the absence of causes in respect to horses ^vhich are 

 known to produce bilious disorders in men ? to wit, intem- 

 perance in living, passions of the mind, sedentary habits, 

 &c. ? Hot climates are well known causes of these com- 

 plaints in men ; and, from an account of Transactions at 



II. 28 



