Elaine, thanks for the advice. I was wondering the same thing about seeds in nature !!
I will probably lift them out as you suggest and see what happens. At this point I would rather sacrifice 3 or 4 than the other 47 so I plan to keep the rest in the dark. I also agree about the other one's probably being ready to germinate. I have sown several 72 flats of seeds over the winter and they all seem to come up within a few hours of each other.
Maybe vermiculite wasn't the best medium for seeds needing dark........a deeper planting in peat would probably keep them in the dark while they wait on their buddies.