p. [195]: from which he his led to conclude -> from which he is led to conclude
p. [200]: some few and unimportannt exceptions -> some few and unimportant exceptions
p. [200]: Cl. V, Narotico-Acrid poisons -> Cl. V, Narcotico-Acrid poisons
p. [210]: The greek work Αρσενικον -> The greek word Αρσενικον
σανδαραχη -> σανδαρακη
αρρενιχον -> αρρενικον
[Footnote 214]: Σανδαραχη -> Σανδαρακη
p. [211]: will assume a tretrahedral form -> will assume a tetrahedral form
p. [217]: the head has also been observd -> the head has also been observed
[Footnote 230]: at the age of thirth-eight -> at the age of thirty-eight