SCIENTIFIC PliOCEKDINGS. 



VOLUME XIII. 



1. A Seed-Bearing Irish Pteridosperm, Crossotheca Honinghmisi, Kidston 



{Lyginodendron oldhamium, Williamson). By T. Johnson, d.sc, f.l.s. 

 (Plates I.-III.) (March, 1911.) Is. 



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



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

 derived directly from the planted Tubers. By Geoege H. Pethybbidge,, 

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



DUBLIN: PRINTHII AT THK liMVI'.llSl IV I'KESSBV IMINSOXKV ANII lilBES. 



