348 Br. Scott on Seed-hearing Plants. [May 15, 



period, from the Fern stock. The following up of the clue, which, 

 as I believe, we have now grasped, will afford a pursuit of the 

 utmost interest and promise. 



But the other great problem — the origin of the angiospermous 

 Seed-plants, which are now supreme in the vegetable world, is as yet 

 untouched. And so, though real progress has been made, it will be 

 long before we can hope for a complete answer to the question which 

 we have had before us this evening. 



