president's addeess. 341 



about thirty feet above the present level of high tide, Dr. Veitch 

 drew the attention of the party to traces of an ancient sea-beach 

 in a bank or hill of sand, in which were noticed many of the 

 common marine shells now living along the Yorkshire Coast. 

 Proceeding southwards along the beach under Huntcliffe, numer- 

 ous nests of the House Martin were noticed built up against 

 the underside of projecting ledges at a height of about 100 feet 

 from the base of the cliff. The birds also were noticed and had 

 apparently not finished their nesting operations. The section 

 shewn in the lofty clifPs was minutely and carefully explained 

 to the party by Dr. Yeitch. These cliffs exhibit a nearly full 

 section of the Middle Lias. I^umerous characteristic fossils 

 were gathered by the more enthusiastic of the party with so 

 much attention and interest that unmarked by them the time 

 slipped rapidly away, and it was long before they reached 

 Skinningrove. They arrived there almost too late to do justice 

 to the kindness of Mr. John Eogerson and Partner, who met 

 them on the beach, conducted them through the Iron Works, 

 and afterwards provided them with refreshment which was most 

 acceptable after the stroll along the coast during a warm 

 autumn day. 



The party afterwards dined at Saltburn and returned to I^ew- 

 castle by train in the evening. 



Dr. Yeitch has kindly furnished me with the following note 

 of three new species observed by him in the Yorkshire Lias : — 



''Whilst studying the Yorkshire Lias, collecting and identify- 

 ing its fauna, several forms have been put aside for further and 

 more careful consideration. Three of them have turned out to 

 be species not previously described : 



' ' A small bivalve of doubtful genus, found attached to Wald- 

 heimia resupinata, occurs in the main seam of ironstone in 

 the Ammonites spinatus zone at Eston. Three examples. 



*' Another bivalve, found in the Ammonites oxynotus zone, 

 Eobin Hood's Bay. Although several specimens have been 

 secured in a fragmentary condition from the shale I have been 

 able to obtain only one perfect one, its preservation being due 

 to its pyritous condition. 



