342 Field Xote. 



The excavation showed that the beds do not rest on a flat 

 surface of Speeton clay, but that tlieir surface dips into the cliff 

 at an anj^-le of 25 deg'rees, and that the bedding- of the shelly 

 deposit itself also dips into the clitT" at about the same ang^le. 



Shells occur throughout the silty beds, but are most plentiful 

 in bed c. When excavating the shells seen were Cardiuni edule, 

 Tellina balthica, Scrobicularia piperatu, and Hydrobia. A 

 <juantity of the shelly material was collected for washing", on 

 which the Committee will report later. 



Search was made for the shell-bed at the same level both 

 north and south of the main excavation. Southward no trace 

 was observable, but northwards the beds were traced 50 yards 

 along the slopes of New Closes Cliff. 



At the foot of the cliff, about 500 yards northward of the 

 site of the excavations, similar shelly silts were laid bare during 

 favourable conditions of the foreshore early this year. In this 

 exposure the beds attained a thickness of 4 to 5 feet, and were 

 traceable for at least 100 yards. The silts rested on Kimeridge 

 clay, and were overlain by glacial drifts which at this locality 

 are extremely thick. 



At the north end of this section the following- particulars 



were noted : — 



Feet Inches 

 Boulder clay with hitercalated stratified sand and 



gravel, not less than ... ... ... ... 120 o 



Fine chalky gravel ... ... ... ... ... 1 o 



.Silt with shells 3 o 



Kinieridg-e clay ... ... ... ... ... ... 4 o 



The thanks of the Committee are due to the Right Hon. the 

 Earl of Londesboroug-h, for permission to investigate the shell- 

 bed at Speeton, and to Mr. C. G. Danford, of Reighton, for 

 help in many ways. 



LEPIDOPTERA. 



Rare Lepidoptera in Wharfedale. — In June last I took a 

 specimen of McUiiiippi' uiunii^uldla at rest on a tree trunk in 

 Bolton Woods, and my son Rosse took Miaiui cxpolita in Grass 

 Wood in July, and another specimen on Bank Holiday the 

 6th insl. in Grass Wood. I took Stilbia anomala (one specimen). 

 We also took Sroptin'ii cDiispiciitilis and Ifvpolcpiu xcquclla, the 

 latter we found by no nicans uncommon on tree trunks. —K. P. 

 lUrriCKiiKi.i), W'ilsdcn, .August ij?th, i()o6. 



Naturalist, 



