47 



yd February ) 1903. 



Mr. Robert Young, J.P., in the Chair 



THE MICRO-FAUNA OF THE BOULDER CLAY, 

 WITH SOME REMARKS ON THE MOVEMENT 

 OF GLACIERS, 



By Joseph Wright, F.G.S. 



(Abstract.) 



Boulder Clay is a stiff compact clay, containing numerous 

 boulders as well as smaller stones, the greater portion of which 

 are more or less rounded, their surfaces being often striated and 

 scored. It formed the subsoil of the greater part of this 

 country — it occurred at all elevations, from the sea level to a 

 height of upwards of 1,500 feet above the sea. Foraminifera 

 have been found at many places in the clay. I have examined 

 samples of it from 134 localities — from Ireland, England, 

 Wales, Scotland, Isle of Man, Canada, and Novaia Zemlia, and 

 in 105 of these Foraminifera had been found. In some places 

 they were very rare, in others they were abundant, but their 

 presence was demonstrated in three-fourths of the instances. 

 With one or two exceptions all the species found in the clay 

 occurred recently off our coast, the fossil specimens having 

 usually the fresh lustrous appearance of specimens brought up 

 by the dredge. Ten of the samples were obtained from alti- 

 tudes of 500 to 1350 feet, all of which, with one exception, 

 contained Foraminifera. 



