Can You Tell Me Some Mistakes In The Harry Potter Series ?

For those who are Harry potter fans, there's bad news. The famous potter series does contains mistakes, some of which have been removed in later editions so it's not necessary that these mistakes would appear in your Harry potter book.
According to some sources on the net, Hargrid in book one has been described as "twice as tall as a normal man and five times as wide" but book 4 contradicts this description and says he's twice as tall but only three times as wide.
The biggest error reported was discovered by a 9 old British girl. In book one when Lord Voldemort and Harry face each other with their magic wands, they form a net overhead. It's when victims of Voldemort's wand begin to emerge from its end as spirit-like beings, in the reverse order in which they were killed. The first is Cedric Diggory, then Frank Bryce, third Bertha Jorkins. The fourth person, James Potter, is the mistake. James was killed before Lily potter hence she should have appeared. This mistake was corrected in later editions of the book.
To find out in detail, about the mistakes in the Harry potter series consult the website given below
www.mugglenet.com