Licence: Public Domain Mark
Credit: A new method of curing the fistula lacrymalis. Source: Wellcome Collection.
Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)
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![[ »° ] changes, induced by difeafe, tho' fcarce- ly capable of being exaftly defcribed, re- quire a minute attention; for by that alone can they be afcertained, and fre- quently reftored to their loft aftion, or to their natural ftate. The inferior por- tion of the lacrymal canal, which I have hitherto diftinguiihed by the appellation of dua, being furrounded by bone, is in- capahle of dilatation. Whatever altera- tion it therefore fuftains, muft take place invvardly, and oCcafion an obftrudion, more or lefs formidable, in proportion to its magnitude. In fome few venereal and fcrophulous habits, the folid bones forming this circle have been found carious; and in others io exoftofed, as entirely to annihilate, not only the membranous lining, but eveii the bony canal itfelf. This cafe excepted, which is not very common, the fpecific circumftances, and varieties of obftrudion in the dua, do not](https://iiif.wellcomecollection.org/image/b21633927_0030.jp2/full/800%2C/0/default.jpg)
