Encouraging! Like, not super encouraging or anything, but it could've gone wrong, and it didn't.
Next, Keltham is going to distribute two propositions each to half the girls, to be assigned a probability on this kind of scale. Don't discuss it among yourselves and especially don't show your question to the other group. He'd be making 6 copies of each proposition, for everyone to look at privately, if he had easy copying. Since he doesn't, he'll give each group a piece of paper to be passed around among themselves, and everybody writes down their own answer individually, on the same common scale they just used for beef-lunches.
Don't worry, it won't be a complicated proposition; it's something that happens around here about a third as often as they have beef at a meal, going on his own memory.
On this occasion he'll not-really-pseudorandomize by taking alternate girls from among 'desks', that is, if they were to be numbered in a seating chart, evens would go to one side of the room, odds to the other side. Can they sort themselves out while he writes the two propositions?