Eminent Living Geologists— G. W. Lmnplugh. 839 



geological and general knowledge. The philosopher says "know 

 thyself"; geologists say "know the world", and to do this a man 

 must travel, travel, travel. He must possess also the trained eye 

 and the retentive memory of the intelligent observer. After some 

 study of drifts in the Eastern and North Central States, Lamplugh 

 drifted gradually westward to the Pacific Coast, Vancouver Island, 

 and Alaska. In winter he journeyed south to the Mexican border 

 and as far as Xew Orleans. Afterwards he described a visit to the 

 Muir Glacier in NatMre and some features of glaciation observed in 

 Vancouver Island in the Proceedings of the Yorkshire Geological and 

 Polytechnic Society and in the Quarterly Journal for 1886. 



On returning home Mr. Lamplugh took up with his accustomed 

 activity his old geological exploration of the Yorkshire coast,^ and 

 especially devoted his attention to the subdivisions of the Speeton 

 Clay. His notes on this formation in the Excursion Guide pre- 

 pared for the London meeting of the International Geological 

 Congress in 1888 brought him into personal association with several 

 distinguished Continental geologists, who visited Speeton under his 

 guidance, and led him to communicate an important paper on the 

 subject to the Geological Society in March, 1889. This paper gave 

 the results of a long series of observations made by him, during 

 favourable opportunities, at the cliff foot and on the beach at 

 Speeton from 1880 to 1889. As the result of his exhaustive labours 

 he was able to show, on stratigraphical and palseontological evidence, 

 that there is probably at Speeton a continuous series of clays from 

 the Jurassic to the Upper Cretaceous, and that the deposition of 

 these beds had gone on contemporaneously with the erosion of the 

 beds inland. 



This exploration of tlie Speeton Clay attracted the particular 

 attention of the Russian geologist Professor Dr. Alexis P. Pavlow, 

 of the University of Moscow. A critical study of the fossils by 

 Professor Pavlow gave rise to a joint paper on tlie Speeton Clay 

 and its Equivalents by A. Pavlow and G. W. Lamplugh.- In 

 it the authors showed by comparative stratigraphy, and on the 

 evidence of the Mesozoic Cephalopods from Russia, this, and other 

 countries, the different "zones" into which the Speeton and 

 llussian beds have been divided, and the actual sequence from the 

 Ivimmeridgian to the Aptian. 



In the award to Mr. Lamplugh of the " Lyell Geological Pund " 

 by the Council of the Geological Society in February, 1891, the 

 President, Sir A. Geikie. referred to his valuable researches among 

 the (llacial deposits of Yorkshire, and particularly to his investiga- 

 tion of the Speeton Clay, as a striking example of the results 

 obtained by long and patient labours of an observer resident on the 

 spot with unusual facilities to examine and study the beds. 



In 1892 the oppoi'tunity so long awaited was afforded Lamplugh 

 to join the Geological Survey as an Assistant Geologist, and, as 



■^ He once described himself as " a coastguard " in the service of geological 

 science. 



" Published in the Bull. See. Imp. Nat. Moscou with 11 plates (Moscow, 

 1892) ; see also Geol. Mag., 1892, pp. 422-6. 



