I found out last night that the edition I've been working with is actually a reprint of the 1901 edition. That fact was not listed anywhere on the book. It just stated a copyright year of 2010. As most of the information in the 1901 edition is outdated or incomplete, I am going to start over with the 40th Edition, which is the most recent edition, and was published in 2008.
I apologize for the error. I'm still stunned that Barnes and Noble would publish a 1901 version as a 2010 edition without stating anywhere that it was outdated. I'm going to be complaining to their corporate offices soon.
It may be a few more weeks before I get a new post up. I need to familiarize myself with the new version and its terminology, and I'm sick, so it may take a bit of time, but I'll get to it as soon as I can.