REPORTS. 433 



ADDITIONS TO THE HERM LIST. 

 LEPIDOPTERA. 



AehePOntia atropos, L. Mr. Spencer captured a fine specimen early in 

 September. 



DIPTERA. 



MePOmyza pratorum, 3[eig. Two specimens captured on July 9th. 



W. A. Luff, F.E.S., Sec. Ent. Sect. 



Report of the Geological Section. 



New Quarry^ north of Vale Castle. 



A qiiaiTY is now being opened in the field north of Vale 

 Castle. The excavations so far have only reached a depth of 

 about 10 feet. They are entirely in superficial deposits. 

 Under the soil are found clay and sand in alternating layers, 

 but of irregular thickness as at Koute Isabelle and the Upper 

 Vrangue Brickfield pit. The sandy beds in places reach a 

 foot in thickness, and the whole deposit is about 6 feet thick. 

 In this deposit are found blocks of undecomposed diorite, one 

 of which measures at least a cubic yard. These blocks are 

 not outcrops of rock, but are resting on the lower sandy and 

 clayey beds. A well rounded pebble from 2 to 3 inches in 

 diameter was also noted in these beds, about 5 feet from the 

 surface. Below these beds is found clay with angular pieces 

 of undecomposed diorite as at the lower Vrangue Brickfield 

 pit. Vale Castle Hill, being immediately to the south of this 

 quarry, might be thought the most probable source of the 

 blocks of diorite above referred to, but the trend of these 

 blocks, which lie more or less in a layer, points rather to a 

 source on the North. In this direction there are flat fields on 

 the further side of which the ground again rises, but to a 

 much less elevation than Vale Castle Hill. 



Hougue Bots, near Noirmont^ St. Sampson's. 



Pebbles in head are reported by Mr. Collenette from the 

 quarry at this locality. 



Hougue Bicard^ Vale. 



A rock approaching Gneiss has been reported as occurring 

 in this quarry. 



C. G. De La Mare, Sec. Geol. Sect. 



