Answer:
inaccuracies of other scholars.
Step-by-step explanation:
In the informative Essay by James Cross Giblin, of name: In The Riddle of the Rosetta Stone, the author shows many achievements of the scholars who were studying the hieroglyphs and trying to understand them.
He says that "A few genuine advances in understanding the hieroglyphs were made during the 1700s.", but he doesn't stop there, since the he doesn't refrain from criticizing other scholars as you can see here:
"For example, a Greek writer named Horapollo said correctly that the picture of a goose stood for the word "son." But then he explained that this was because geese took special care of their young, which was completely inaccurate."