PAL^EONTOLOGICAL WORKS 3G9 



4. Arachnida 



Fritsch, A. (1) Fauna derGaskokle, etc. iv. 1901. (2) Palasozoische 



Araclmiden. 1904. 

 Holm, G. Eurypterus. Mem. Acad. Iniper. Sci. St. Petersbourg (8), 



vin. 1898. 

 Huxley, T. H. and Salter, J. W. Pterygotus. (Mem. Geol. Survey, 



Organic Eemains.) 1859. 

 Laurie, Bd. Eurypterida. Trans. Roy. Soc. Edinburgh, xxxvu. (1892), 



p. 151, (1893), p. 509 ; xxxix. (1899), p. 575. 

 Peach, B. N. Scorpions from the Carboniferous of Scotland and the 



English Borders. Trans. Roy. Soc. Edin. xxx. (1881), p. 397, (1882), 



p. 511. 

 Focock, It. I. Silurian Scorpion. Q. J. Micr. Sci. xliv. (1901), p. 291. 

 Schmidt, F. Die Crustaceenfauna der Eurypterusschichten von Rootzi- 



kiill. Mem. Acad, imper. St Petersb. (7), xxxi. (1883), p. 28. 

 Woodward, H. (1) The Xiphosura. Q. J. G. S. xxm. (1867), p. 28 ; 



xxviii. (1872), p. 46. (2) The Merostomata. 1866-78. (Palteont. 



Soc.) 



w. p. 24 



