190 Reports & Proceedings — Geological Society of London, 



contributions to the geology of Northern Scotland. A skilled chemist as 

 well as a keen petrologist, he has utilized in this way his leisure as 

 a medical practitioner during the last twenty years. 



By his investigation of the sandstones of Eastern Moray he has thrown 

 light, both on the source of the material and on the climatic conditions 

 which prevailed during its deposition. In the cement of these sandstones 

 he detected traces of the heavy metals, and his inquiry led to the discovery 

 in quantity of barytes and fluor in the Elgin Trias. His petrographical 

 work includes an interesting study of the granites of the North of Scotland, 

 and he has also carried out a large series of chemical analyses of igneous 

 and sedimentary rocks in order to elucidate theoretical questions suggested 

 in the course of his researches. 



His recent discovery of plant-bearing cherts in the Old Red Sandstone of 

 Rhynie (Aberdeenshire), has added a new interest to that formation. 

 Dr. Kidston and Professor Lang recognize these cherts as silicified layers 

 of peat, and a new class of vascular Cryptogams, the Psilophy tales, has 

 been made for the reception of the plants which they contain. 



I ask you, in forwarding this award to Dr. Mackie, to convey to him our 

 hope that he will thereby be' encouraged to continue the researches which 

 he has hitherto pursued with such enthusiasm. 



The President then presented a moiety of the Balance of the 

 Proceeds of the Lyell Geological Fund to Arthur Hubert Cox, Ph.D., 

 said : — 



Dr. Cox, — The Council has awarded to you one moiety of the Proceeds of 

 the Lyell Fund in recognition of the value of your work among the Lower 

 Palaeozoic rocks. Since you read before this Society, five years ago, 

 a paper on the Pedwardine Inlier, you have devoted much time to geological 

 researches in Wales, both South and North. Your paper on the Abereiddy 

 and Abercastle district was a valuable contribution to the stratigraphy and 

 tectonics of Pembrokeshire, and gave evidence of skilful and accurate work 

 in the field. On the petrological side, too, it added to our knowledge of 

 the Ordovician igneous rocks, a subject to which you have also given 

 attention elsewhere. Your work in the Cader Idris district, of which we 

 have as yet only a preliminary account, seems to be of the same thorough 

 quality ; and, in thus marking our appreciation of what you have already 

 done, we look forward to results not less important from your geological 

 labours in the time to come. 



In handing the other moiety of the Balance of the Proceeds of the 

 Lyell Geological Fund, awai'ded to Tressilian Charles Nicholas, M.A., 

 to Mr. H. Woods, for transmission to the recipient, the President 

 said : — 



Mr. Woods, — A moiety of the Proceeds of the Lyell Fund has been 

 awarded to Mr. T. C. Nicholas as a mark of appreciation of his work on the 

 older Palaeozoic rocks of Carnarvonshire. The results of that work are 

 represented firstly by a paper on the Geology of the St. Tudwal's Peninsula, 

 in Lleyn, read before this Society in 1914. Therein he gave a comprehensive 

 account of the succession, fossil contents, and classification of the Cambrian 

 strata of the district, and established the unconformity which exists between 

 these beds and the overlying Ordovician. This paper was supplemented in 

 the same year by a palseontological one dealing with the rich trilobitic 

 fauna, of Middle Cambrian age, which his researches had discovered. 

 A number of new and interesting species were described, and the succession 

 of forms was correlated with that recorded for other areas. 



As an old friend of Mr. Nicholas, and one who has seen something of the 

 difficulties presented by the Lleyn district, I am pleased that it falls to my 

 lot to extend to him, on behalf of the Council, this token of recognition of 

 his geological and palceontological work. 



