The Hood River City Council Monday night will discuss the potential taxing of recreational marijuana should Measure 91 pass during the November election.  Hood River County Commissioners have already scheduled a public hearing on October 13 to address the subject.  With Measure 91 specifically pre-empting cities and counties from enacting taxes on marijuana sales, some city and county governments in Oregon have been rushing to consider approving ordinances before the election.  Mayor Arthur Babitz has his doubts about whether anything the City could pass would stick.  Babitz noted Measure 91 does call for cities and counties to receive 20 percent of state tax revenues from the sale of marijuana.   The Council meets Monday at 6 p.m. in Hood River City Hall.