I’m glad to see we have traveled in the same circles of literature. If you remember correctly V made the statement that positive proof of the link of continents up to his writing had not been proved. V claimed that the link would be found. As I understand it the link to the continents and their drift were found after V’s death.
Again, where did he write it? It’s been some years for me as well, at least as far as “Earth In Upheaval” is concerned.
The Great Rift and the Jordan
http://www.varchive.org/itb/rift.htm
The Ocean
http://www.varchive.org/ce/ocean.htm