O.H. redux

Don't forget. I'll be at the Open Houses this Sunday. The 172 Brattle St in Arlington runs from 12:00 - 2:00, and then I will zing off to the 18 Cushing Street OH in Medford from 1:00 to 3:00. (I realize I will not be in 2 places at once, but Scotty's been tuning up the transporter so I should be able to transfer fairly fast.). One of my colleagues will be at the houses when I am not. Hope to see you!