It's probably the same one; the one linked here is stamped "1899" because that's the year it was entered into the Harvard library, but the date "July, 1869" is

It's probably the same one; the one linked here is stamped "1899" because that's the year it was entered into the Harvard library, but the date "July, 1869" is clearly visible on the bottom of every single page. The original poster wasn't paying attention.