Dow Chemical as I knew it in 1981 when I left.  Nothing to the right of the Administration building and Herbicides was there at the time.  Chlor-Alkali 1 was running, Chlor-Alkali2 was starting up and VCM (Vinyl Chloride) had just started production.  The train tracks at left did not go past Chlor-Alkali2 and there was no train car switching yards on site (switching yard not shown in this photo)