than them in a lecture at Chic[illegible] Chicago University, and at Urbana. Further that copies had been taken at Chicago, by Jarage at Urbana, and that Ostrom had a set. I too could have a set without any other promise than that [illegible] would accredit them to Wells with the statement that they are very hypothetic. I refused to accept at Urbana because it would in [illegible] find me to show him my maps. He repeated his offer that he could have them [illegible] such a promise but that he would ask me me to accept his offer. I don't believe I will accept his offer even though or letual are of kind. This 1st maps are on the same base as mine only the net lines and drainage lines are all in black instead as mine are blue and black. The first one is Lower Cambrian. The brown sediments are in green and assuming the Atlantic ocean to be permanent has connected the green epicontinental areas with the green Atlantic ocean. The Lower Cambrian is a narrow tongue down the Appalochia area and out to Labrador, founded on the work by