A COMPARISON BETWEEN TWO TEXTS

If I want to compare "The Indian character" by Francis Parkman with "Among the Osage Indians" by Washington Irving, I would say that none of them seems really reasonable. Parkman gives us a violent, uncivilized picture of Indians which seems so dark. He describes them as jealous, treacherous and taciturn people. Although I should say that in some sentences he admires them. He praises Indians' respect for their leaders and their faithfulness .He confesses that they are even ready to lay down their lives for their comrades.
How ever, Irving in "Among the Osage Indians" is too optimistic. It seems that he is so impressed by Indians' nobility that can not see their negative aspects. This is obvious especially in parts which he describes the young Osage. He just mentions that how enormous, gorgeous and brave he is. On the whole, I should say that every fair description should include both positive and negative aspects which I haven't seen in any of these two texts.