Transcriber's Note: Blank pages have been deleted. On pages that remain,
some unnecessary page numbers may have been deleted when they fall in the
middle of lists. Some illustrations may have been moved. The publisher's
inadvertent omissions of important punctuation have been corrected. Some
wide tables have been rearranged or re-formatted to narrower equivalents
with some words replaced with commonly known abbreviations and possibly a
key. Some ditto marks have been replaced with the words represented. The
author often skipped the period in 'Dr,', 'Mr,', Messrs. and 'Mrs.' so all
such instances are formatted here without the period. The author switched
from using 'B. P.' to 'B.P.' for British Pharmacop[oe]ia part of the way
through the text so all such instances have been changed to 'B.P.'
Duplicative front matter has been removed.
Other changes are listed below. The listed source publication page number
also applies in this reproduction except possibly for footnotes since they
have been moved.