ON THIS EDITION WILL LOOK AT THE POST-UNIFICATION EXPANSION AND REORGANIZATION OF THE IND: https://en.wikipedia.org/wiki/History_of_the_New_York_City_Subway PICTURES BY THE WIKI-PEDIA: https://commons.wikimedia.org/wiki/File:Independent_Subway_by_David_Shankbone.jpg#/media/File:Independent_Subway_by_David_Shankbone.jpg https://commons.wikimedia.org/wiki/File:1939_Station_Guide_Independent_City_Owned_Rapid_Transit_Railroad.jpg#/media/File:1939_Station_Guide_Independent_City_Owned_Rapid_Transit_Railroad.jpg