RARE BIRDS AT ACKWORTH. 197 



importance, as strange to say after mounting the hill to as much as one 

 hundred feet, the same beds of Oolite Marl which we had investigated in 

 the valley below were found to recur, accompanied by the same distinctive 

 fossils, Terebratula fimbria and carinata, and Bhynconetta lycetti. As we 

 journeyed up the hill our passage over the fuller's-earth beds was rendered 

 manifest by the dark brown hue of the mould, as well as by the springs 

 of water which welled out copiously at their junction with the Great Oolite, 

 but no characteristic fossils were obtained. To these clays succeed the lower 

 slaty beds of the Great Oolite, which gradually in their passage upwards 

 assume a more compact character brought us again to the level of the 

 freestone beds which we had examined at the Beech Pike. 



The afternoon was now beginning to wear apace, and we found it neces- 

 sary to make the best of our way to rejoin our gig and horse. A cut 

 across a few fields brought us to the village of Winstone, from whence a 

 road led directly to the point we desired to reach. By the way we 

 observed as noteworthy, that the line of the fuller's-earth beds was plainly 

 discernible in the newly-ploughed ground, by the sudden and striking contrast 

 between its deep brown colour and the light brashy hue of the Oolite 

 surface with which it was placed in juxtaposition, frequently in the same field. 



In the course of our day's ramble we collected, besides the fossils named 

 and a few others, two pretty Rhynchophorus Beetles, Sitona hispidala and 

 sulcifrons, Byrrhus pilula and sericeus, Bembidium nitidulum, and Clivina 

 fossor, and the following land-shells: — Vitrina pellucida, Zonitea alliarius, 

 purus, crystallinus, Helix aspersa, pomatia, nernoralis, virgata, ericetorum, 

 lapicida, rufescens, hispida and variety concinna, fulva, pulcliella, rotundata, 

 umbilicata, Bulimus lacJchamensis, obscurus, Pupa secale, Glausilia bidens, 

 nigricans, Zua lubrica, Carychium minimum, and Cyclostoma elegans. 



Elmore Court, May, 1857. 



OCCURRENCE OF RARE BIRDS AT ACKWORTH. 



BY CHARLES EDWARD SMITH, ESQ. 



June 5th., 1857. — A fine Turtle Dove, brought me by a gamekeeper. 

 Though common in the southern counties, they are rare in Yorkshire. 



Several Grasshopper Warblers have been heard here this spring. Two 

 were procured. 



May 13th., 1857. A Tern or Sea Swallow, shot at Hernsworth Dam. 

 These birds seldom come so far inland. Two years ago I saw a Black 

 Tern hovering over the Dam. Last autumn a Goosander or Merganser, 

 (Mergus merganser,) was procured there; — a male bird, as shewn by the 

 curious drum-like enlargement of the trachea, not found in that of the 

 female. Also a Scoter. 



VOL. VII. 2 D 



