576 Obituary — William Gunn, F.G.8. 



EADIOLAEIAN CHERTS IN THE CULM. 



Sir, — I wish to call attention to a Eeview of the Geological 

 Survey Memoir on " The Geology of the Country around Exeter "^ 

 which appeared in your November number, pp. 524-525. 



Probably through a printer's error the title (Explanation of 

 Sheet 325) has been rendered " (Explanation of Sheet 25)." 



Lower Culm-measures are said to " embrace a large extent of the 

 Exeter area " dealt with in this Memoir. As a matter of fact the 

 Lower Culm rocks occupy a very small area on the south-western 

 margin of the map; and, as far as I know, they have not been 

 searched for Eadiolaria by my friend Mr. Fox, although he records 

 their discovery in many places in the map to the south (Sheet 339). 



As regards being up-to-date, the literature of the Culm-measures 

 would have shown the writer the groundlessness of the charge that 

 I have not acknowledged my friend Mr. Fox's discoveries.^ 



Methleigh, St. Austell, Cornwall. W. A. E. UsSHEK. 



November 2Zrd, 1902. 



OBITTJ.A.I^■3^. 



WILLIAM GUNN, F.G.S. 



Born September 27, 1837. Died October 24, 1902. 



Me. William Gunn joined the staff of the Geological Survey in 

 1867 under Murchison, and was occupied for many years chiefly 

 in the survey of the Carboniferous rocks in West Yorkshire, Durham, 

 and Northumberland. In 1884 he was promoted to the rank of 

 Geologist, and was transferred to Scotland, taking up work in 

 Bute, and proceeding subsequently to the North-West Highlands. 

 In later years he was engaged in the Survey of the Isle of Arran, 

 and among other interesting discoveries he found evidence of a 

 volcanic vent of Tertiary age which enclosed fragments of Rheetic 

 and other Secondary strata, not previously recognized in the island.. 

 Mr. Gunn was author of memoirs published by the Geological 

 Survey on Belford, Holy Island, and the Fame Islands, on the 

 coast south of Berwick-on-Tweed, on Norham and Tweedmouth, and 

 he was joint author of memoirs on Wooler and Coldstream, on 

 Ingleborough, and on Corval in Argyllshire. 



His other contributions to geology related for the most part to- 

 the rocks which he had studied in the course of his official work. 

 He thus communicated occasional papers to the Transactions of the 

 Edinburgh Geological Society, the Berwickshire Naturalists' Club, 

 the Glasgow Geological Society, the Geological Society of London,, 

 and the Geological Magazine. 



All his work was of a thorough and most painstaking character. 

 He enjoyed the active outdoor life of a geologist, and continued 

 to carry on field-work until near the close of his life, when, having 

 attained his 65th year, the age-limit obliged him to retire from the 

 service. Only last year he was promoted to the rank of District 

 Geologist. 



1 [The Eeviewer doubtless referred only to Memoir on Sheet No. 325, in which the^ 

 name does not seem to occur. — Edit, Geol. Mag.] 



