168 



REPORTS. 



Guernsey was made by myself in the early eighties, and as I 

 had never seen it since I had begun to suspect some mistake 

 — the more that I had not preserved a Guernsey specimen. 

 All my own come from North Wales. 



On September 8th T took Hying to light at the Imperial 

 Hotel, Pleihmont, a fine male Epineuronia (Heliophobw) 

 papillaris. This handsome moth, though very common in the 

 south of England, has never been noticed in Guernsey before. 

 This is the more strange as it is too large and too boisterous 

 in its behaviour to be easily overlooked. The male is readily 

 attracted by light, the female never, but is a very sluggish 

 insect and can only be found by searching at night with a 

 lantern the stems of coarse grass on which it rests and on 

 which the larva feeds. 



Frank E. Lowe, Sec. Ent. Sect. 



Report of the Geological Section, 1010. 



1. — "Hougue du Moutier" Quarry, S. Sampson. 

 The working of this quarry has exposed a fine section of 

 a vein presenting some peculiarities. This vein is of a 

 uniform width of about 2 feet, but its course is very sinuous, 

 which may in great measure be accounted for by faulting and 

 displacement subsequent to its intrusion. The " country 

 rock " is the usual diorite, but the composition of the vein is 

 variable. In those parts where it seems least altered, it 

 consists almost entirely of crystallized quartz and felspar, but 

 elsewhere it passes into ci syenite, while in other parts it has 

 been altered by the formation of secondary products, such as 

 chlorite and epidote, and the vein has a very mottled appear- 

 ance due to the presence of iron in various combinations. 

 The diorite into which it intrudes is also much altered in 

 places, resembling serpentine, while on the east side of the 

 quarry there is a patch where it is distinctly banded, some of 

 the bands consisting entirely of hornblende in crystals 

 averaging \ of an inch in diameter, while the alternating 

 bands contain much quartz. This patch of banded rock is 

 cut through by the vein, so that its banded formation is 

 evidently anterior. 



2.— Hue Piette, Cdtel. 

 The bank having been cut back for the purpose of 

 building a well, shewed superficial deposits ranging from 

 nothing at the south end to 5 or 6 feet in thickness at the 

 lower or north end. These deposits consist of the usual 



