374 Reports and Proceedings — 



We have hardly left ourselves room to speak of the valuable maps 

 which illustrate the work of Professor Heddle. They are all 

 carefully lithographed and ct)loured, and will be found of great 

 service to the mineralogical student and collector. Two of these 

 maps, those of the Shetland Islands and of the County of Sutherland, 

 are more than ordinarily ambitious. The former is certainly the best 

 map of the Northern Islands yet issued to the public. The latter, 

 which is founded upon the well-known map of the Duke of Suther- 

 land, is most interesting from the fact that it embodies the results 

 of the extended geological researches of the author in the disputed 

 Durness and Assj'nt region. It is published separately, and is ac- 

 companied by a separate pamphlet, explanatory of the author's views. 



In his descriptions of minerals and mineral localities, Professor 

 Heddle is most patient and painstaking ; but his accounts of the 

 scenery and geognosy of the different areas are most attractive to 

 the geological reader. He hurries us onward from point to point 

 and scene to scene, hardly allowing us time to take breath. His 

 style is often a little high-pitched perhaps, but never flat or un- 

 interesting. Through all we catch the enthusiasm of the lover of 

 nature, the flow of joyous animal spirits, the sweet breath of fresh 

 air, and the exhilaration of the mountain breeze. The mass of the 

 woi"k is of course interesting only to the mineralogical student, to 

 whom the book in its completed form will become- an absolute 

 necessity. But much of it is interesting not only to British geologists 

 in general, but to all those who love nature and nature's interpreters : 

 and we trust that the author will find time and opportunity to 

 complete a work so worthily begun. 



DBEIPOS-TS -A-IsTID I^E-OGIEZBIDIlNrca-S. 



Geological Society of London. 



I.— June 7, 1882.— J. W. Hulke, Esq., F.R.S., President, in the 

 Chair. — The following communications were read : — 



1. — The President read the following note, forwarded by Don 

 Manuel F. de Castro, Director of the Geological Survey of Spain : — 

 " On the Discovery of Triassic Fossils in the Sierra de Gador, Pro- 

 vince of Almeria, Spain." 



" The metalliferous limestone of the Sierra de Gador, owing to no 

 fossil remains having been found prior to this occasion, has been a 

 perfect puzzle to all geologists for the last fifty yeai's. 



" MM. Maestre, Amar de la Torre, Pernolet, Ansted, and Cooke 

 considered these limestones to belong to the Transition series, the 

 former taking it as a representative of the Mountain Limestones 

 of other parts of Europe. M. Prado hinted that they might be 

 Devonian ; whilst M. Willkomm, in the geological map published to 

 accompany his botanical researches in Spain, considered them Silurian. 

 Lately, MM. Botella and Vilanova, in their respective maps, have 

 marked them as belonging to the Permian series ; whilst M. de 

 Verneuil, coming nearer to the truth, took the whole of the lime- 



