SECT. XXVIII; 2. PARALYSIS OF ABSORBEN FS. 349 



but as foon as the wound is opened, fo as to admit 

 air to the fur face of the ulcer, a he&ic fever fuper* 

 venes, even in very few hours, which is probably 

 owing to the azotic part of the atmofphere rather 

 than to the oxygene ; becaufe thofe medicines* 

 which contain much oxygene, as the calces or 

 bxydes of metals, externally applied, greatly con- 

 tribute to heal ulcers, of thefe are the folutions of 

 lead and mercury, and copper in acids, or their 

 precipitates. 



Hence when wounds are to be healed by the firft 

 intention, as it is called^ it is neceffary carefully to 

 exclude the air from them. Hence we have one 

 caufe, which prevents pulmonary ulcers from heal- 

 ing, which is their being perpetually expofed to 

 the air. 



Both the dark-eyed patients, which are affe&ed 

 with pulmonary ulcers from dificient venous abforp- 

 tion, as defcribed iri Section XXVII. 2. and the 

 light-eyed patients from deficient lymphatic abforp 

 tion, which we are now treating of, have generally 

 large apertures of the iris ; thefe large pupils of 

 the eyes are a common mark of want of irritability; 

 and it generally happens, that an increafe of fenfi- 

 bility, that is, of motions in confequence of fenfa- 

 -tion, attends thefe conftitutions. See Seel. XXXI. 

 2. Whence inflammations may occur in thefe front 

 ftagnated fluids more frequently than in thofe con- 

 ftitutions, which poffsfs more irritability and lefs 

 fenfibility. 



Great expectations in refpect to the cure of con- 

 fumptions, as well as of many other difeafes, are 

 produced by the very ingenious exertions of DR, 

 BEDDOES; who has eftablifhed an apparatus for 

 breathing various mixtures of airs or gaffes, at the 

 hot-wells near Briftol, which well deferves the at- 

 tention of the public. 



A a 4 



