Well, I've only gotten through message 4, but I read the messages up to message 5 and Andrew Plotkin's translations, and I have some comments. (a) There was an old message about 'h' that seems to have been forgotten. 'h' should be _arccos_, not cos; then the somewhat mysterious 'j's become clear. For instance, arccos 1/2 = 36 heg _or_ 180 heg. (b) Irrelevant technical question: what's the order of the new symbols in the third message? Is 0 above or below the other digits? (c) Why does everyone assume the little picture of a Tau Cetian in the third messageshows it standing? To me it looks an awful lot like a six-legged crawling critter, in which case the picture would be from above. It's awfully round, w/ spindly legs, to be standing. (d) And in the same message, I'd like to take issue with Andrew Plotkin's derogatory comments about the semicircle picture. It serves to further verify the image format; in particular, the relative starting points for the various circles (i.e., it's not spiralling out, as Andrew himself suggested in one preliminary message). I thought it was quite clear. And of course the Tau Cetians realize this won't do to tell left from right. Fun puzzles. And I definitely think another run, with more than one person behind the scenes, would be a good idea. Things I'd like to see: I liked the inside-out grammar, but I'd like to see a non- human grammar more fully developed. Maybe in the coming messages... A more sensible transmission scheme. Those Tau Cetians are awfully prolific with the tones. And no hints, dammit. --Dylan Thurston