MEETINGS. 185 



accepted the Centigrade Scale, and of late years Lord Kelvin 

 has worked out an absolute zero at 273 degrees Centigrade 

 below the freezing point of water. 



Rev. R. H. Tourtel, B.D., read the concluding part of 

 his paper on the Ancient Names of the Bays and Rocks 

 of the Bailiwick, this portion dealing specially with the 

 Alderney area. An interesting discussion followed the reading 

 of this paper, which is printed farther on in these pages. 



Monthly Meeting held on March 18th, 1903, Mr. A. Collenette, 

 Vice-President, in the chair. 



The following were unanimously elected members of the 

 Society : — 



Dr. Kelson, M.R.C.S., L.R.C.P.; Mrs. Kelson; Dr. E. 

 L. Robinson, M.R.C.S., L.R.C.P. ; Col. H. Le Mottee, Jurat; 

 Mr. F. L. Tanner, L.D.S., F.R.C.S. ; Major T. Macleane ; 

 Dr. H. S. Wild, M.R.C.S., L.R.C.P., and Mr. J. W. Nash. 



Mr. G. Dalgliesh exhibited a specimen of the Hairy 

 Porcelain Crab {Porcellana platycheles) a common and widely 

 distributed species, taken at Fermain Bay. 



The Secretary announced the receipt of several volumes 

 presented to the Society (which will be enumerated in the 

 Annual Report) and reported that he had lately searched 

 for and found, at one of its stations at L'Ancresse, the minute 

 Violet ( Viola nana), one of the plants peculiar to the Channel 

 Islands. 



The second of the series of short scientific lectures was 

 delivered by Mr. F. Holiday, the subject being " The Study 

 of Rocks by means of thin Sections." It gave a clear and 

 interesting explanation of the processes employed, and the 

 new ideas of the structure of rocks obtained by this means. 

 The lecturer alluded to the great scientific results attained 

 by the study of living animal and vegetable organisms under 

 the microscope, leading up, through the study of fossils, to 

 the structure of the rocks themselves, and the deposits in 

 which the fossils were found. Thus, altogether a new light 

 had been thrown upon the conditions under which crystalline 

 rocks came into existence, and some idea could be formed 

 as to the rapidity or slowness of the process, whether under 

 pressure, whether the mass has since undergone a metamor- 

 phosis, and so on. Several very interesting sections were 

 exhibited under microscope, and by means of various 

 diagrams Mr. Holiday explained how these thin sections were 

 prepared. 



