Simple typographical errors were corrected; occasional unbalanced quotation marks retained.
Ambiguous hyphens at the ends of lines were retained.
Text uses both "mediæval" and "medieval"; both retained.
Index not checked for proper alphabetization or correct page references.
The Hebrew letter "aleph" appears on pages [64] and [174]. Devices that cannot display it may use a "?" or other symbol.
Page [70]: "most ancient or the picture-writing" probably should be "of".
Page [102]: "well-kneeded" was printed that way.
Page [105]: "concensus" was printed that way.
Page [129]: "Origin" may be a misprint for "Origen".
Page [169]: The sentence beginning "For it was a specific outgrowth" was printed as shown in this eBook, but seems to be incomplete or incorrectly worded.