In this transcription, hyperlinks (to pages and illustrations) are identified by black dotted underlining, and also by aqua highlighting when the mouse pointer hovers over them. A red dashed underline marks a concealed comment that can be revealed by hovering the mouse pointer over the underlined text.Page numbers are shown in the right margin.
A short table of contents has been inserted to assist readers.
The following spelling errors have been corrected silently:
pathognomic → pathognomonic
accidently → accidentally
coalesence → coalescence
hematomesis → hematemesis
hemorraghic → hemorrhagic
uniformily → uniformly