,20 Dr. John Mullers Examination of [July 



blood below, while above, the liquid portion predominates, 

 and there are few globules, the fibrin of the whole mass, 

 however, coagulating above. 



This explanation of the huffy coat is satisfactory, if it be 

 allowed that inflamed blood always coagulates more slowly 

 than healthy blood. Dr. Davy has observed that it does 

 not always coagulate slowly. 



EFFECT OF GALVANISM ON THE BLOOD. 



When a drop of serum is exposed to the galvanic action, 

 a deposit of albuminous globules takes place at the zinc 

 pole, in consequence of the accumulation of acid towards 

 that pole, and not, as Dutrochet thinks, because the albu- 

 men is electro-negative. The globules of the blood do not 

 accumulate at either pole, but at both poles they undergo 

 a decomposition at the expense of the colouring matter, for, 

 under the hydrogen bubbles disengaged from the copper 

 pole, we can observe a filamentous substance of a clear 

 brown colour. These are particularly observable in the 

 blood of the frog, but not in that of a mammiferous animal 

 which has been killed. 



Miiller submitted a solution of the colouring matter to 

 the galvanic action. A red coagulum was found at the 

 zinc pole, in the shape of a magma, composed of albumen and 

 the red matter of the blood. This deposit increased in quan- 

 tity, but diminished in intensity of colour. At the copper 

 pole, gas and flakes were formed, which Miiller attributes to 

 the solution of the animal matter in the alkaline solution. 



Miiller found that the fibrin goes to the zinc pole, and 

 may be considered electro-negative ; but fibrin also enjoys 

 the property of re-acting upon acids, and can act either as 

 a base or acid. When fresh fibrin dissolved in serum 

 separated from the blood globules, is exposed to the action 

 of galvanism, the albumen of the serum is deposited at the 

 zinc pole, but the coagulation of the fibrin takes place in 

 the form of drops, as if it had not undergone the galvanic 

 action. 



ON THE CHYLE. 



The chyle contains globules, with albumen and fibrin in 

 solution and fat. In coagulating, the fibrin encloses a 

 portion of the globules, while the remainder exists in sns- 



