Geological Society. 513 



portion only of Wainlode Cliff, where it constitutes No. 9. in the 

 following corrected section : — 



Ft. in. 



1 . Blackish lias clay 3 6 



2. Limestone, with Ostrea and MocUola mini- 



ma (the bottom bed) 4 



3. YeUowish shale 1 



4. Limestone,'with remains of insects 4 



5 . Marly shale and clay 5 3 



6. Yellowish limestone nodules, with occasional 



remains of Cypris 6 



7. Yellowish marly clay 6 



8. Black laminated clay 3 6 



9. Stone, with scales and bones offish, and on 



the upper surface fucoid impressions. ... 1 



10. Black laminated clay 1 6 



11. Slaty calcareous stone, with Pectens 4 



12. Black laminated clay 9 



13. Bone-bed and white sandstone, with casts 



of Pullastra arenicola 3 



14. Black laminated clay 2 



15. Greenish angular marl 23 



16. Red marls with greenish zones 42 



98 7 

 Jan. 4, 1843. — " Notice on a Suite of specimens of Ornithoidic- 

 nites, or foot-prints of Birds on the New Red Sandstone of Connec- 

 ticut." By Gideon Algernon Mantell, LL.D., F.R.S. 



These specimens were accompanied bya letter from Dr. James Deane 

 of Greenfield, Massachusetts, the original discoverer of the Ornithoi- 

 dicnites, of which more than thirty varieties had been found, bearing 

 a striking resemblance to the foot-prints of birds. In this letter Dr. 

 Deane gives an account of his discovery of the impressions eight or 

 nine years ago, and which he then communicated to Professor Hitch- 

 cock. He remarks, that " the footsteps are invariably those of a 

 biped, and occur on the upper surface of the stratum, while the cast 

 or counter-impression is upon the lower. In some instances Ave may 

 follow the progress of the animal over as many as ten successive 

 steps." He has seen a course of steps twelve inches in length by 

 eight in breadth, extending several rods. The intervening space 

 was uniformly four feet. One impression of a foot was fourteen 

 inches in length. The impressions are accompanied by those of 

 rain-drops. 



Extract of a Letter from W. C. Redfield, Esq., on newly dis- 

 covered Ichthj'olites in the New Red Sandstone of New Jersey. 

 Communicated by Charles Lyell, Esq., ^^P.G.S. 



Mr. Redfield has found two distinct fish-beds in the new red 

 sandstone of New Jersey, both containing ichthyolites of the genus 

 PalcEoniscus. In the sandstone between the fish-beds he discovered an 

 Ornithoidicnite, and observed numerous slabs exhibiting impressions 



