Bering, Pfliig. Arch., vol. 60, pp. 519-542. 



* Haycrafl, Journal of Physiology, vol. 21, p. 126. 

 5 Rivers, Journ. of Physiol., vol. 22, p. 137. 



Hering, Pfliig. Arch., vol. 47, p. 417. 



7 V. Kries and Xagel, Zeitschrift f. Psychol. u. Physiol. der Sinnesorgane, 

 vol. 23, p. 161. 



* Tschennak, Krgeb. d. Physiol., 1st Jahrg., 2nd part, p. 731. 



' Burch, Proc. Roy. Soc., B, vol. 76, p. 199. See also Nngel and Schaefer, 

 Zeits. f. Pay. u. Phys. d. Sinnes., vol. 34, p. 271 ; Loeser, ibid., vol. 36, p. 1. 



10 Parinaud, La Vision, Paris, 1898 (Doin), p. 51. 



11 * J. v. Kries, Die Uerichtaempfindungen, Handb. d. Physiol. d. Mmsch., 

 herausge^eben v. W. Na, r el, vol. 3, pp. 109-282. 



11 Hering, Pfliig. Arch., vol. 49, p. 563. 



11 Schttternikof, Zeits. f. Psy. u. Phys. d. Sinnes., vol. 29, p. 255. See also 

 Fujita, ibid., vol. 43 (pt. ii.), p. 243. 



14 Abney, Proc. Roy. Soc., vol. 66, p. 179. 



" *Cfunert t Arch. f. Opthalmol., vol. 56, p. 132. Other papers on total- 

 colour-blindness are : Hering, Pfliig. Arch., vol. 49, p. 563. Hess, Zeits. f. 

 Psy. u. Phys. d. Sinnes., vol. 29, p. 99. Hats and Hering, Pflug. Arch., vol. 

 71, p. 105. V. Hippel, Klinische Monatsblatter f. Augenheilkuiide, vol. 36, 

 p. 324. Nagel, Zeits. f. Psy. u. Phys. d. Sinnes., vol. 29, p. 118. Uhto/, 

 Zeits. f. Psy. u. Phys. d. Sinnes., vol. 20, p. 326 ; and vol. 27, p. 344. 



lf Quoted in * Helmholtz's Handbuch d. Physiol. Optik., 2nd edit., p. 501. 



17 V. Kries, Nagel's Handb. d. Physiol., &c., vol. 3, pp. 220-226. 



M Charpentier, Archives de Physiol., 1892, p. 541 ; also C. H. de 1'Acad. 

 des Sciences, vol. 113, p. 149. 



19 Macdougall, British Journal of Psychology, vol. 1, p. 78. 



10 Hess, Zeits. f. Psy. u. Phys. d. Sinnes., vol. 27, p. 1. 



11 V. Kries, Zeits. f. Psy. u. Phys. d. Sinnes., vol. 29, p. 81. 



n Hamaker, Zeits. f. Psy. u. Phys. d. Sinnes., vol. 21, p. 1. Other 

 papers on recurrent vision are : Bidwell, Proc. Roy. Soc., vol. 56, p. 132. 

 Charpentier, C. R. de 1'Acad. d. Scien., vol. 113, p. 149. Hess, Pflug. Arch., 

 vol. 49, p. 190. Hess, Arch. f. Opthalmol., vol. 44, p. 445 ; vol. 51, p. 225. 

 V. Kries, Zeits. f. Psy. u. Phys. d. Sinnes., vol. 12, p. 81 ; vol. 19, p. 175 ; 

 vol. 25. p. 239. 



Garten, Pfliijr. Arch., vol. 68, p. 68. Sachs, Pfliig. Arch., vol. 52, p. 79. 

 Abelsdor/, Zeits. f. Psy. u. Phys. d. Sinnes., vol. 22, pp. 81, 451 ; vol. 34, 

 p. Ill (with Feitchenfeld). 



M Schultze, Arch. f. Mikrosk. Anatm., vol. 2, pp. 175-273. 



Parinaud, Arch. Gener. de Med., 7th Series, vol. 7 (1881), pp. 403-414. 

 C. R. de 1'Acad. d. Sciences, vol. 93, p. 286. 



M Mesrmcr, Zeits. f. Psy. u. Phys. d. Shines. (2te Abth. f. Sinnes- 

 physiologie (1907), vol. 42, p. 83. 



v Kiihne, Hermann's Handbuch der Phys., vol. 3, p. 235 (twenty-two 

 other papers published, 1877-9). 



M Trendelenburg, Arch. f. Physiol., 1904, Suppl. End., p. 228. 



" Nagel and Himstedt, Festschr. d. Univ. Freiburg i. Br., 1902 (quoted 

 in Nagel's Handb., vol. 3, p. 96). 



