t no ] 



XXXVI. Letter from ^/r 11. C. Englefilld, respecting 

 his Mduntain Barometer. 



To Mr, Tillock. 



SIR, 



In a note at the bottom of page 1 9 of your last number, I 

 preferred having the lower part of the tube only a twentieth 

 of an inch in the bore, something on the principle of the 

 marine barometer. Upon a mare minute investigation, I 

 do not find that this would answer the purpose so well as I 

 then thought, nor is it so good as the simple tube. J there- 

 fore beg your insertion of this for the information of your 

 numerous readers. I am, sir, &c. 



H. C. Englefield. 



March 21, 1808. 



XXXVIT. Report of Surgical Cases in the City and Fins- 

 bury Dispensaries, for October 1807; loiih some Remarks 

 on the Dissection of the Brain of a Person uho died in' 

 sane. By John Taunton, Esq, 



An the month of October there were admitted on the books 

 of the City and Finsbury Dispensaries 21 1 surgical patients. 



Cured or relieved — 193 



Died — — 2 



Under cure — 1 



211 



Since which time there have been admitted 969. 



A few days since, I was requested to examine the head of 

 a person who bad been insane for some months preceding 

 death, which took place suddenly, letat. about 35. 



The general appearance of the body, which was robust, 

 indicated a high degree of health and strength. 



On removing the upper part of the scull, the dura mater 

 formed a considerable projection over the posterior and su- 

 perior part of the left hemisphere of the cerebrum, near the 

 course of the longitudinal sinus. On cutting through the ex- 

 ternal 



