32 Manchester Memoirs, Vol. xlviii. (1903), No. 2. 



EXPLANATION OF THE PLATE. 



All the specimens are from the Ardwick Series, and are now 

 in the Sedgwick Museum, Cambridge. 



(Photographs by Air. Tains, Cambridge. ) 



Plate I. 



Fig. I. Lepidodendrott dichotomum, Zeiller (PSternb.), No. 959. 

 Very slightly enlarged. 



Fig. 2. Lepidodendron dichotomum. Portions of another stem 

 included in the same specimen, and part of Fig. i, 

 X2I 



Fig. 3. Neuropteris Scheuchzeri, Hoffm. No. 634. Very slightly 

 enlarged. . 



Fig. 4. Pecopteris Miltoni (Artis). No. 599. Very slightly 

 enlarged. 



