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Disappointed as regards the result of an election, he transferred his 

 services to St. Thomas's Hospital (1837). He was a follower of 

 Bichat, and taught the importance of changes in the tissues as a 

 fundamental factor in pathology. He wrote much, and had great 

 literary ability. His Essay on Medical Education (1828) is well worth 

 reading. His chief work is Lectures on the Anatomy of Serous and 

 Mucous MemJIn'anes (1836-37), in which he shows the great value of 

 morbid anatomy, a subject which in these days seems to be largely 

 pushed aside by an aspiring younger and prolific sister. Be this as 

 it may, Hodgkin has left his impress on pathology, and any one 

 who wishes to read the record of a noble life will find such in Sir 

 Samuel Wilks' account of Hodgkin in Guy's Hospital Reports, XXIII. 

 (1878). Hodgkin resigned practice, travelled much, and died of 

 dysentery in Jaffa. As showing the influence of the teaching, or 

 rather the success, of a method, let me quote his remarks on the well- 

 known episode — a striking one — in the early career of Bichat at the 

 H6tel-Dieu. 



" The practice of taking notes is the most powerful means of counteracting this 

 inconvenience, and is, I am persuaded, by many pupils, diligently and effectually 

 followed up. Still I could wish that the regulations of our schools did not wholly leave 

 this important point to the discretion of the pupil. It was the practice of Desault to 

 require of those who attended his visits at the H6tel-Dieu narratives of the principal cases, 

 which were publicly read. Attention and emulation were unavoidably excited, and I 

 need adduce no further proof of its utility than the example of Bichat, whose splendid 

 talents were first brought into view on some of these occasions." (Hodgkin's Essay on 

 Med. Education, Lond. 1828.) 



" Edwards's book was published in 1832, and amongst other subjects are some very 

 interesting observations on the effects of heat on animal life. Experiments on frogs 

 showed that death took place at the normal temperature of warm-blooded animals. He 

 speaks of instances of persons going into hot ovens with impunity, and their temperature 

 not rising ; and if the experiments were made with animals the result was the same, 

 but if their temperature rose they died. He therefore came to the conclusion that an 

 animal could not sustain life beyond a temperature of 120°. He alludes to an 

 observation made by the celebrated Franklin, to the effect that, although he one day in 

 summer found the temperature of the air was 100°, that of his own body was only 

 96°, proving for him that warm-blooded animals have the power of maintaining in 

 themselves a temperature inferior to that of the atmosphere, when the latter is above its 

 ordinary limits, and that notwithstanding the changes of climate and seasons the 

 temperature of the body is permanent. In reference, Edwards says, ' When Franklin had 

 made experiments on the power of evaporation in the cooling of liquids he referred to 

 the same cause the faculty which he attributed to animals of maintaining the 

 temperature of their own bodies below that of the air when its heat is excessive,' and he 

 also alludes to experiments made by Dr. Fordyce, proving that heat is given off by 

 transudation through the skin, and adds, ' Evaporation is also sufficient to retain the 

 temperature of animals and in organized bodies below that of the external air, when the 

 latter is excessive, that is, when it is above the body temperature of warm-blooded 

 animals.' He then speaks of the elevation of temperature in disease, and quotes a case 

 of Dr. Prevost, of Geneva, where a boy with tetanus had a temperature of 110 - 75°, and 

 remarks, ' It will be admitted that it is important to moderate the excess of heat, not 

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