26 The Causes and Prevention of Miners' Nystagmus. 



fraternities. To Dr. Halclane, especially, I am indebted for much valuable 

 help and encouragement. 



The Directors of the Powell Duffryn Company and Ehymney Iron 

 ■Company, the South Wales Colliery Owners, and the South and West 

 Yorkshire Colliery Owners, have given me every facility. 



I should like to thank, in particular, Mr. W. E. Garforth, Mr. Binns, of 

 Derby ; Dr. Hughes, of Blackwood ; Mr. Phillips, of New Tredegar, and 

 Mr. Rutherford, of Pthymney. I have also received help from the following 

 gentlemen : — Dr. Elworthy, Ebbw Vale ; Drs. W. and A. Martin, Leighton 

 Davies, of Cardiff ; Dr. Hislop, Wrexham ; Dr. Leary, Alfreton ; Dr. Wood 

 Wakefield; Dr. Buncle, Pontefract; Dr. Nicholson, Leeds; Dr. Symes, 

 Chesterfield; Drs. Kerr and Emerson, of Sheffield; Dr. Gray, Mansfield; 

 Dr. Morris, Mardy ; Dr. Eobson, Penarth ; Drs. Thomas and Phillips, 

 Ystrad ; Dr. Morris, Tylorstown ; Dr. Eichards, Eisca ; Dr. Astbury, 

 Aberaman ; and Dr. McGhie, of Merthyr Vale. 



REFERENCES. 



(1) Roniiee, 'Bull, de la Soc. Beige d'Ophtalmologie,' No. 25, p. 71. 



(2) „ ' Bull, de VAcad. de Med. de Belgique,' 1892, 4, Serie 6, p. 299. 



(3) Stassen, 'Aimales de la Soc. Med. Chir. de Liege,' September, 1909, p. 290. 



(4) Nuel, Reference 1, p. 103. 



(5) Dransart and Famechon, ' Bull, de l'Acad. Roy. de Belgique,' 4, p. 424. Serie 22. 



(6) Court, ' Brit. Med. Journ.,' 1892, vol. 2, p. 836. 



(7) Libert, ' Annates des Mines de Belgique,' 1910 (translation ' Colliery Guardian,' 



1911, pp. 1153, 1269). 



(8) Rogers, ibid. 



(9) ' Statistics of Compensation,' Blue Book Cd. 5896. 



(10) „ „ „ 5386. 



(11) „ „ „ : 4S94. 



(12) Deconde, quoted Reference 5, etc. 



(13) C. Bell Taylor, ' Lancet,' 1875, vol. 1, p. 821. 



(14) Nieden, 'Der Nystagmus der Bergleute,' 1894. 



(15) Dransart, 'Annates d'Oculistique,' 1877, lie Serie, p. 8. 



(16) Snell, 'Lancet,' 1875, vol. 2, p. 81. 



(17) „ ' Miners' Nystagmus,' 1892. 



(18) Jeaffreson, ' Brit. Med. Journ.,' 1887, vol. 2, p. 109. 



(19) Reid, A. Christie, ' Brain,' 1906, vol. 29, Fart 3, " Miners' Nystagmus." 



(20) Thompson, T., ' Trans. Ophth. Soc.,' vol. 11, p. 87. 



(21) Rutten, see Reference 7. 



(22) Peters, 'Archives of Ophthalmology,' vol. 36, p. 667. 



(23) Elworthy, ' Brit. Med. Journ.,' 1910, vol. 2. 



(24) Boulton, ' Practical Coal Mining.' 



(25) Nettleship, 'Trans. Ophth. Soc.,' vol. 29, p. 125. 



(26) „ ibid., vol. 31, p. 162. 



(27) „ 'Diseases and Injuries of the Eye.' 



