Certainly Greenland is a most curious and difficult problem.

But as for the Leguminosae, the case, my dear fellow, is as plain as a pike-staff, as the seeds are so very quickly killed by the sea-water.

Seriously, it would be a curious experiment to try vitality in salt water of the plants which ought to be in Greenland.
I forget, however, that it would be impossible, I suppose, to get hardly any except the Caltha, and if ever I stumble on that plant in seed I will try it.
I wish to Heaven some one would examine the rocks near sea-level at the south point of Greenland, and see if they are well scored; that would tell something.

But then subsidence might have brought down higher rocks to present sea-level.

I am much more willing to admit your Norwego-Greenland connecting land than most other cases, from the nature of the rocks in Spitzbergen and Bear Island.