1835.] Baron Dupuytren. 95 



a happy application of the principles so well developed by 

 John Hunter. 



In 1815, he road to the Institute a memoir upon ligature 

 of the arteries, substituted for amputation of the limbs in 

 cases of fracture, complicated with aneurisms. 



He also wrote upon the ligature of the arteries, practised 

 according to the method of Anel, in certain cases of division 

 of these vessels produced by lightning. 



In 1816, he read to the Institute a paper on the ligature 

 of the principal arterial trunks. The other surgical writ- 

 ings of Dupuytren were upon congenital dislocations of 

 the femur, and old dislocations in general, on retraction of 

 the finger and strangulated hernia. He edited the new 

 edition of Sabatier's work. 



2. Pathological Anatomy. — Under this head may be men- 

 tioned, his numerous researches in the bulletins of the 

 faculty of medicine, relating to cellular, mucous, cartila- 

 ginous, and osseous transformations, on fibrous, fatty, in- 

 cysted products, and on scrofulous, cancerous, and schir- 

 rous degenerations. 



In his researches on callus, published in 1831 , he endeavours 

 to shew, that in consequence of fractures, there are two 

 kinds of callus formed, temporary and permanent. In 

 1803, he published observations on false membranes, where 

 he investigates the causes, progress, expulsion, or organi- 

 zation of false membranes, the advantages and incon- 

 veniences of their formation from inflammation in the 

 serous, sinovial and mucous membranes. 



3. Anatomy. — His Observations on the spleen shew that 

 animals may live, exercise their functions, re-produce their 

 species, although deprived of this organ. 



In 1803, he published. Investigations on the Veins of the 

 Bones. 



Observations on the fibrous tissues. He divides these struc- 

 tures into white fibrous, non-elastic tissues, and yellow 

 elastic tissues. 



His Researches on the erectile tissues were published in 1816. 



4. Physiology . — Experiments on the nerves of the tongue. 

 These demonstrate that some of the nerves of the tongue 

 are destined for the purposes of motion, and others for those 

 of sensation. 



