SECTldN AT THE FEKN LEDGES. 519 



thickly covered with a little y^pirorbis as are the fronds of the 

 recent fucoids of the Ledges. The specimens are too poorly 

 preserved for identification. — Trilohites. ]\Ir Payne collected 

 a minute trilobitc from this bed. The specimen was sent by 

 Professor Dawson to j\Ir Saltei-, bnt that gentleman has made 

 no mention of it in his paper. — Insect Remains! In the sum- 

 mer of 1862, I discovered an organism in Bed No 2, which at 

 the time I could make nothing of; but which I have since 

 proved to be the wing of an insect. Several weeks after, 

 I found in Bed No. 8 an unequivocal insect's wing. This 

 discovery was followed by that of others, my father, J. W. 

 Hartt, finding another in this bed. 



Compact flaggy sandstone, quite barren . . 5 feet 10 inches. 



Plant-bed No. 3 . . . . . 10 ,, 



Black and lead-coloured shales, quite compact in upper part, but in 

 lower very crumbling, splitting irregularly, slicken-sided, often with 

 polished surfaces, and traversed by thin quartz-veins. These shales 

 are so soft that the sea and weather have everywhere denuded them 

 to the level of the beach. There are now no exposures of the bed 

 workable. The following are the fossils which occur in it : — 



Calamiles transitionis, Goeppt. Occasionally. — C. cannceformis, 

 Brongn. — Asteroph>jllites latifolia, Daws. Very beautiful 

 whorls of this plant are very common here, the whorls, though 

 usually detached, being sometimes found united three or four 

 together. Annidaria acuminata^ Daws. Common. — Pinnu- 

 laria disjyalans, Daws. Common. — Psilojjhyton elegans, Daws. 

 Occasionally, — P. (?) glabtnim, Daws. Occasionally. — Cordaites 

 Robbiii Daws. Extremely abundant, but not so well preserved 

 as in Bed No. 2. Leaves apt to be preserved as polished bands 

 of graphite, with venation obliterated. — CyclojJteris obtusa, 

 Lesqx. Not very abundant. — Neuropteris polymorpha^ Daws. 

 In beautiful specimens, common. — Sphcnopteris mmyhiafa, 

 Daws. Not common, — S. Hoemnghaiisii, Brongn. Not com- 

 mon. — Pecopteris (Alethopteris) discrepans, Daws. It was 

 here that I first discovered this species. It occurs quite 

 abundantly, but always in fragments. — Cardiocarpum cornutiim, 

 Daws. Quite common. — C. obliquum, Daws. Quite common. 



Coarse sandstone, full of obscure casts of Stcrn- 



bergice and Calamites . . . . .6 feet 6 inches. 



Soft shale and fissile sandstone, with Calamites . „ 3^ ,, 



