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Few members of the Bristol Naturalists' Society will need 

 to be reminded of the eminent services to science which 

 have given to the memory of the Society's first President a 

 claim upon our respectful regard. Nevertheless, in present- 

 ing a portrait of Mr. Sanders after the lapse of sixteen 

 years, it may be appropriate to reproduce the following 

 sentences taken from the Anniversary Address of the then 

 President of the Geological Society, Mr. John Evans, F.R.S. 



" By the death of Mr. William Sanders, F.R.S., on the 

 12th of November, 1875, the Society has lost another of its 

 early members, and one who for upwards of forty years of 

 his life was intimately associated with the most distinguished 

 men connected with geological science, 



'•Mr. Sanders, who was born on the 12th of January, 

 1799, was a native of Bristol ; and to the study of the 

 geology of the neighbouring country he devoted his life. 



" At the commencement of his scientific career he was the 

 friend and companion of Prof. Phillips in his geological 

 survey of North Devon and Cornwall. But his principal 

 work was the preparation and construction of an elaborate 

 geological map of the district comprised within the Glouces- 

 tershire and Somersetshire coal-field, on the scale of four 

 inches to the mile. This w^ork, which extended over fifteen 

 years, was undertaken at the instigation of Sir Henry de la 

 Beche and Prof. Phillips. Besides this map, he published 

 some measured sections of the extensive cuttings on the 

 Bristol and Exeter Railway, and on the line from Bristol to 



