144 Life of T>v, 3 QimQV, 



was to have another, it should be one that had just spawned ; I will take 

 a cock salmon when you please. 



" If you catch any bats let me have some of them ; and those you try 

 yourself, open a hole in the belly, just size enough to admit the ball ; put 

 the ball down towards the pelvis, and observe the heat there ; then up 

 towards the diaphragm, and observe the heat there; observe the fluidity 

 of the blood ; do all this in a cold place. Extraneous fossils are all ve- 

 getable and animal productions, found in a fossil state. See if you can 

 catch the number of pulsations and the frequency of breathing in the 

 bat, without tortiu-e. If the frost is hard, see what vegetables freeze ; 

 bore holes in large trees, and see whether the sap runs out, which will 

 show it is not frozen. I am afraid you have not a proper thermometer. 

 I will send you one. 



" Your very much obliged servant, 



" J. Hunter." 



The friendship and example of such a man as John Hunter 

 must have had considerable influence over the mind of 

 Jenner. They stimulated him to prosecute actively different 

 branches of natural science ; and the three first chapters of 

 Dr. Baron's work present us with a very pleasing picture 

 of the various pursuits in which he occupied himself from the 

 age of twenty-three to that of forty-five. He devoted him- 

 self, with an earnestness truly admirable, to the duties of his 

 profession. For twenty years he practised, with great repu- 

 tation^ as a surgeon and apothecary. On one occasion he 

 was sent for to Gloucester, where he successfully performed 

 a difficult and delicate operation. He obtained the degree 

 of M.D. from St. Andrew's, in 1792^ to which honour he 

 was well entitled. He was, in truth, an excellent physician. 

 A long letter to his friend, the Rev. Mr. Clinch (published 

 at p. 88), gives us a sketch of his views concerning fever, 

 which are well worthy of his name. He appears to have the 

 merit of first detecting the pathology of that formidable 

 disease the angina pectoris. His notions concerning tuber- 

 culous disorganizations, and the disordered conditions of the 

 lymphatic system generally (alluded to at p. 99), are very 

 ingenious, and serve to display the extent and variety of his 

 powers. As a pharmaceutist, he is entitled to some praise, 

 having, early in life, introduced the mode of preparing tartar 

 emetic, from tlie glass of antimony, which is now adopted by 

 the London college. Those who are curious in such matters, 

 may perhaps trace to this little circumstance the peculiar 

 attachment to this remedy which Dr. Jenner shewed in the 

 latter periods of his life. 



While his mind was thus occupied in the active duties of 

 an arduous profession, it is delightful to contemplate the 

 {irdour with which he pursued so many other objects of re-^ 



