TREATMENT OF INFLAMMATION. 147 



equally accessible, the whole of the blood passing 

 into, and returning from, the gland, must traverse 

 these trunks ; and consequently, by acting on one or 

 other of them, we have the circulation through the 

 organ completely under command. And availing 

 myself, to the fullest extent, of the advantages thus 

 offered, I have not only studied the effects of ob- 

 structed circulation as induced by a partial or com- 

 plete occlusion of the renal vein, but have also, in an 

 organ healthy and untouched, caused phenomena 

 identical with those of acute inflammation, by ob- 

 structing the abdominal aorta beloio the origin of the 

 renal arteries, and at the same time tying the vessels 

 of the left kidney ; the consequence of which neces- 

 sarily was a greatly increased flow of blood to the 

 remaining organ. An enumeration of the advan- 

 tages afforded by the kidney for the prosecution of 

 this inquiry would be very incomplete without some 

 notice of the beautiful contrivance by means of 

 which aqueous effusion naturally takes place into 

 the uriniferous ducts ; for an account of which we 

 are indebted to my esteemed friend Mr. Bowman, of 

 King's College. The piece of minute mechanism 

 thus unexpectedly brought to light is in itself so 

 exquisitely simple, and at the same time so admirably 

 adapted to the accomplishment of the end it was 

 intended to fulfil, that its discovery could not fail to 

 elicit from every lover of natural science the warmest 

 admiration. 



But to myself this valuable addition to microsco- 

 pical anatomy is fraught with a double interest. 

 For it not only enables me to explain, and trace, 



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