Since SNOW1 was a bit of a mess at the beginning, because of the encoders following obsolete examples, I've manually encoded the title page as an example.

Also found a problem with METR1 which was not really a bug, nor an encoding invalidity: a body element which goes straight to content (e.g. a head) with no intervening div is not invalid, but it triggered rendering problems because it was completely unexpected. As it happens, the encoding should not have been that way -- other divs appear later in the body -- but it wasn't technically wrong, so it would be good to figure out a way to prevent this through the schema or more likely through Schematron. We could change the content model of body so that it can only have divs, of course.