SCIENTIFIC PROCEEDINGS. 



VOLUME XIII. 



1. A Seed-Bearing Irish Pteridosperm (Lyginodejidron Oldhammvi, 'Williaimson). 



By T. Johnson, d.sc, f.l.s. (Plates I., II., III.) (In the Press.) 



2. Considerations and Experiments on the supposed Infection of the Potato Crop 



with the Blight Fungus {Phytophthora injestans) by means of Mycelium 

 derived directly from the planted Tubers. By George H, PETHYBRiDaE> 

 D.sc, PH.D. (March, 1911.) Is. 



DUBLIN : PRINTED AT THE UNIVERSITY PRESS BY PONSONBY AND GIBBS. 



