Weird sentence in "The lord of the rings". Copyright trap??

Both of my Houghton Mifflin editions of LOTR, the 1991 Tolkien Centenary edition (with a cover illustration by Alan Lee of Frodo, Sam and Gollum hiding near the Gate of Mordor: http://www.amazon.com/The-Lord-Rings-J-Tolkien/dp/B001989FBC/ref=sr_1_2?ie=UTF8&qid=1384112080&sr=8-2&keywords=tolkien+lord+of+the+rings+1991) and the 2001 movie tie-in (with a cover photo of a Nazgul on horseback at night: http://www.amazon.com/Rings-Movie-Edition-Tolkien-J-R-R/dp/B00DT6B2BS/ref=sr_1_135?ie=UTF8&qid=1384112203&sr=8-135&keywords=tolkien+lord+of+the+rings+2001), correctly say “Sam looked at it…” It’s p. 405 in the 1991 edition, and p. 375 in the 2001 edition.

Oddly, though, there are three errors in the appendices of the 2001 edition that aren’t in the 1991 edition…!

If this were a Tolkien original mistake, I’d expect that he’d go to great lengths to explain it, probably about how Sam and Same were variations on the same name in the original (a very common concept in old literature, especially the Bible).

I mean, he did that when he accidentally used an Elf name twice.

You shall not parse!!

I have always vividly recalled the phrase he used, and use it myself …“Up pops a New Moon, thin as a nail-paring”