70 Report of the City and Fimlnry 'Dispensaries. 



he, the pressure upon the vessel will still be the same as he- 

 fore. But I have endeavoured to show that nothing can be 

 derived from a supposed conjoint action of the repulsion of 

 the gases. From whence, therefore, must half the pressure 

 proceed ? The number of particles is the same before and 

 after admixture : there is in one case n particles pressing 

 upon the vessel with a force = 1-26; and in the other t^ 

 particles pressing with a force =: 1- on!^ : — liowcan the ag- 

 gregate of these forces be equal ? And again, for every action 

 there must be a corresponding reaction: the particles of a gas, 

 the; f t> re, cannot press upon a vessel in a greater degree thaix 

 they react upon themselves. And as Mr. Dalton supposes 

 that gases under this combination have nothing to react 

 upon but particles of their own species. How can he recon- 

 cile the pressure upon the vessel as being 1"26 for each par- 

 ticle of gas, whilst he himself supposes the utmost reaction 

 of each particle as 1* only? 



XII. Report of Surgical Cases in the City and Finslury 

 Dispensaries,- for December 1807. By John Taun- 

 ton, Esq. 



XN the month of December there were admitted on thfe 

 books of the City and Finsbury Dispensaries 223 surgical, 

 patients. 



Cured or relieved — 192 



Died _ _- 5 



Under curtt — 31 



228 



Since which time there have been admitted 1283. 



Miss R., set. 26, of a spare habit of body, delicate consti- 

 tution, general health much impaired, suflFers greatly during 

 the discbarge of the catamenia, which returns at intervals 

 of al>out six or seven weeks. 



About six years since she received a blow on the right 

 breast, which produced a general swelling of the gland, at- 

 tended with much pain : these were relieved by fomentations 



and 



