What did John Muir mean when he said I had been fording streams more and more difficult to cross and wading bogs and swamps that seemed more and more extensive and more difficult to force one's way through.

Muir describes his traitorous journey he had to embark through the swamp and narrate how the trip was dangerous and uneasy. He uses words such as difficult, struggling, fear, extensive, crooked, brood heaps, faint, hungry and tangled to depicts the severity of the event. Muir uses diction with a negative connotation to elicit the fear and concern that he felt when he became worried whether or not he'd be able to make it out of the swamp before night.

d. the polar jet stream   lies between the polar easterlies and trade winds should be your answer

the answer is solomon northrup. he was a free-born african american, abolitionist and professional violinist that was drugged, kidnapped and sold as slave in 1841 and remained in captivity until 1853 where he regained his freedom with the of the then-governor of new york, washington hunt. he wrote and published his memoirs "twelve years a slave" in 1853, and in this text, he tells the story of his escape thru one of louisiana's swamps (the great pacoudrie swamp) in which he ended up covered in green slime from crossing the surface of the dead water.