H/EMORRJTAGIES. 221 



the first symptoms of the renewed plethoric state, and upon that 

 repeated the venesection ; but a lesser quantity was now taken 

 than before; and in the same manner, and with the same atten- 

 tion, the bleeding may be repeated in a less quantity, thus 

 making the return of the plethoric state less remarkable ; and, 

 at length, so far as it depends upon that, rendering it none at all. 



" So in young and vigorous persons, who, with a suspicion 

 of a hereditary taint or diathesis, or after some preceding acci- 

 dental symptoms of plethora and actual haemorrhagy, such as 

 frequent bleeding from the nose about the time of puberty, are 

 now at a period of life when they may apprehend a much more 

 dangerous haemorrhagy, that from the lungs in such persons, I 

 think, it has been very properly proposed to employ venesection ; 

 and to avoid the consequences, which I mentioned, it may be prac- 

 tised at longer and longer intervals, and in smaller quantity ; 

 and, joined with other measures, it may prove an effectual means 

 of obviating the congestion." 



DCCLXXXVIII. While a plethora, and thereby the pre- 

 disposition to haemorrhagy, is avoided, or removed, the other 

 measures necessary for preventing the occurrence of this, are 

 those for avoiding the remote causes. These have been enu- 

 merated in DCCLXXV.; and the means of avoiding them, 

 so far as within our power, are sufficiently obvious. 



DCCLXXXIX. Having thus mentioned the means of pre- 

 venting either the first attacks, or the recurrence of haemorr- 

 hagy, I must next say how it is to be managed when it has 

 actually come on. 



DCCXC. When an haemorrhagy has come on, which appears 

 to have arisen from a preternaturally plethoric state, or from 

 some change in the balance of the sanguiferous system, no 

 measures are to be immediately taken for suppressing it ; as we 

 may expect, that, when the quantity of blood necessary for the 

 relief of the system is poured out, the effusion will spontane- 

 ously cease. 



" Here again we meet with a general question arising 

 from the doctrine of the Stahlians : as they suppose haemorr- 

 hagy necessary, so they suppose that it is wisely instituted 

 by nature for the relief of the system, and that the con- 

 duct of the business may be left to nature. They produce 



