Took me about eight months to notice that Mr. Souvlaki, the sweet little Greek restaurant on Montague Street in Brooklyn Heights, had closed its doors. Guess I don't walk down that street as much as I ought. Still, I'd like to record its passing here. It was a homey, unpretentious place for the Heights, and probably the cheapest sit-down meal on Montague. Their white bean soup was wonderful. Harry and Anna Kilimitzoglou were the owners. Thirty-three years they were at it. Nothing new is there as of yet. The wide blue awning is gone and there is newspaper over the windows. I hear a dentist's office will be going in there. Turnover has always been endemic to Montague. Mr. Souvlaki was one of the steadies. Too bad.