38 



Meetings, 1887. 



and Greenstone. Quartz Bock protrudes in the cliffs at Jer- 

 bourg on the side facing Moulin Huet Bay. Intrusive Diorite 

 occurs at Pleinmont, and patches of Slatey Rocks atRocquaine. 

 In the western portion of St. Saviour's parish at Casteau Roc, 

 L'Eree, and near Rocquaine the Gneiss coming in contact with 

 dykes of Diorite, takes the form of compact Granite. Herm, 

 and J ethou are masses of Grey Granite Rocks. 



Sark ; Syenites occur in the north of the island and in Little 

 Sark. Trap and Porphyry on the east coast. Various 

 Schistose Rocks along the west coast. Mineral lodes traverse 

 the island. 



Alderney ; on the south and west are Granite and Syenites, 

 with intrusions of Trap, Porphyry and Diorites covered on the 

 eastern side with overlying Sandstone. 



No traces of Fossils or Organic remains are found in any of 

 the Islands. 



The Fifth Annual Meeting of the Society was held at the Ouille- 

 Alles Library October 31 st, 1887, Mr. John Whitehead, President, 

 in the chair, 



Mr. W. Sharp, honorary secretary, read the annual report, 

 as follows : — 



There is but little of importance to lay before you at this, 

 the Fifth Annual Meeting of the Guernsey Society of Natural 

 Science. It is a matter cf some congratulation that the Society 

 is still in existence, and that a small number of the inhabitants 

 are found who continue to take an interest in scientific matters 

 and to fulfil the object for which this Society was founded. 



At the beginning of the year the Society, with a view to 

 encourage an interest in nature and her works, decided to offer 

 from time to time, prizes for the best collection of natural 

 objects, but their efforts in that direction met with no response. 

 It is much to be deplored that the youth of Guernsey are grow- 



