334 Obituary — Frank Rutleij. 



and illustrated by many of his own excellent drawings. Of this 

 a second edition was issued in 1881. Later on in 1888 he published 

 a work on " Rock-forming Minerals," and in 1894 " Granites and 

 Greenstones : A series of Tables and Notes for Students of Petrology." 

 In 1882 Ml". Rutley was appointed Lectui'er on Mineralogy in 

 the Royal College of Science, a post which he occupied for about ten 

 years, when he was unfortunately forced to retire through disable- 

 ment by paralysis. For several years, so far as his strength permitted, 

 he continued to work with unabated enthusiasm at petrological 

 subjects ; and until the end he never ceased to take great interest 

 in his favourite studies. He was a man who in early life was 

 endowed with great vigour, but his habits were somewhat erratic; 

 he burned the midnight oil far too much, toiling into the early 

 morning when he should have slumbered, and finding it difficult 

 in consequence to conform to the regulations of official life ; but he 

 was a genial companion, full of dry humour, and ever ready to 

 assist others. His published work shows how assiduous and pains- 

 taking he was, and the accompanying list gives the best idea of 

 the special researches which he carried on for a number of years. 

 He was awarded the Murchison Fund by the Council of the 

 Geological Society in 1881, and later on he served for a few years 

 as a member of the Council : — 



1865. [Letter on a Subsidence at Lexden, in Essex] : Geol. Mag., Vol. II, 

 pp. 231-2. 



1870. [Letter on] Geology of the Lake Distiict: ibid., Vol. YII, pp. 584-5. 



1871. [Letter on] Glaciation of the Lake District : ibid., Vol. VIII, p. 93. 

 1873. " On a New Method of Writing Crystallographic Formulie " : ibid.. Vol. X, 



pp. 299-301, 527-8. 



1875. "Notes on some peculiarities in the Microscopic Structui'e of Felspars": 



Quart. Jouru. Geol. Soc, vol. xsxi, pp. 479-487. 



1876. "On some Structures in Obsidian, Perlite, and Leucite " : Micr. Journ., 



vol. XV, pp. 176-183. 



1877. " On Microscopic Structures in Tachylite from Slieve-nalargy, Co. Down, 



Ireland" : Journ. Roy. Geol. Soc. Ireland, ser. ix, vol. iv, pp. 227-232. 



1879. " On Community of Structure in Rocks of Dissimilar Origin " : Quart. 



Jom-n. Geol. Soc, vol. xxxv, pp. 327-340. 

 ' ' On Perlitic and Spherulitic Stractiu-es in the Lavas of the Glyder Fawr, 

 North AVales" : ibid., pp. 508-9. 



1880. " Ou the Schistose Volcanic Rocks occurring on the West of Dartmoor, with 



some Notes on the Structure of the Brent Tor Volcano": ibid., 

 vol. xxxvi, pp. 285-294. 

 [Letter on] The term ' Schist' : Geol. Mag., Dec. II, Vol. VII, pp. 239-40. 



1881. " The Microscopic Characters of the Vitreous Rocks of Montana, Q.S.A. " : 



Quart. Journ. Geol. Soc, vol. xxxra, pp. 391-399. 

 ' ' On the Microscopic Structure of Devitriiied Rocks from Beddgelert and 



Snowdon ; with an Appendix on the Eruptive Rocks of Skomer Island " : 



ibid., pp. 403-412. 

 "Visit to the Museum of Practical Geology [Rock Collection]": Proc. 



Geol. Assoc, vol. vii, pp. 114-15. 



1884, "On Strain in Connexion with Crystallization and the Development of 



Perlitic Structure" : Quart. Jouru. Geol. Soc, vol. xl, pp. 340-346. 



1885. " Ou Fulgurite from Mont Blanc ; with a Note on the Bouteillenstein, 



or Pseudo-Chrysolite of Moldauthein, in Bohemia": ibid., vol. xli, 



pp. 152-156. 

 " On Brecciated Porfido-rosso antico " : ibid., pp. 157-161. 

 [Letter on] The Enstatitic Lavas of Eycott Hill: Geol. Mag., Dec. Ill, 



Vol. II, p. 285. 



