Observations on the formation and uses of the natural frog of the horse : with a description of a patent artificial frog, to prevent and cure contracted hoofs, thrushes, cankers, and sand cracks / by Edward Coleman.
- Coleman, Edward
- Date:
- 1800
Licence: Public Domain Mark
Credit: Observations on the formation and uses of the natural frog of the horse : with a description of a patent artificial frog, to prevent and cure contracted hoofs, thrushes, cankers, and sand cracks / by Edward Coleman. Source: Wellcome Collection.
Provider: This material has been provided by Royal College of Physicians, London. The original may be consulted at Royal College of Physicians, London.
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![I [ 6 ] tra£t, but if that organ be in clofe contact with the ground, then it fpreads and is free from Jhjrufhes and canker, and operates'as a wedge to keep open the heels of the hopf. The fame degree pf perpendicular preffure* applied to the infenfible frog, that produces pn- ly pleafantf nfation to the fenfible frog when in health, creates exquifite pain when difeafed. It is therefore of great importance to preferve the frog found, for when contracted or cut, or in- flamed, it becomes highly fufceptible of every impreffion ; we might with as much wifdom .contra£t the flioe of the human fubjeSt, or re? move the Ikin of the foot, when obliged tp walk on Hones without fhoes. Granite and other hard fubftances, give no pain to a frog expofed tp conftant preffure in the Jtahle; but when above the pavement, it generally becomes contracted, and the fenfible frog inflamed, and then on£ ftroke from a pro- jeSting ftone, will produce pain, perhaps lame- nefs, while perpetual perpendicular preffure is attended with falutary effeSts. Thofe who conceive, that the frog was not made to come in contact with the ground, and * By perpendicular preffure, I mean that preffure th* frog meets with from the ground, aftd not the lateral prgffure of a contracted hoof.](https://iiif.wellcomecollection.org/image/b28519425_0016.jp2/full/800%2C/0/default.jpg)
