Transcriber's Notes
Obvious typographical errors have been silently corrected, other variations in spelling and punctuation remain as in the original.
The original began with an unidentified illustration. This appears to be the Friction Sponge referred to at the end of the book. The illustration has been placed on page 86 where its use is described and a caption has been added.
In the heading of CASE 4, "Two cases of —— Ophthalmia, ending in Opacity of the Cornea." —— represents a word crossed out in all available copies of the book.
The first of the corrigenda has been implemented, the second had already been corrected in the original.