What is referred to by 'abolitionist railroad'?

Based on the clue 'abnormal electrical activity in the brain causes t...', what is the answer? Based on the clue 'abnormally high fluid pressure in the eye caused t...', what is the answer? Based on the clue 'aboard ship in a storm the men cast these items of...', what is the answer? Based on the clue 'abolitionist levi coffins house in fountain city i...', what is the answer? What is referred to by 'abolitionist william garrison'? What is associated with: about 1 hydrogen atom in 6500 is this isotope? Based on the clue 'about 1 in 400 african americans has this heredita...', what is the answer? What is associated with: about 1 male in 10000 is born with this bleeding disease where blood lacks clotting factor vii…