LITERATURE. 30 7 



31. " Monograpliie der Echinodermen der Eifler Kalk." Schultze. 



' Denkschr. der K. Akad. der Wiss.' 1867. 



32. " Monograph of Recent and Fossil Crinoids." T. Austin and T. 



Austin, jim. 1843. (Unfinished.) 



33. "On the Cystideae of the Lower Silurian Rocks of Canada." E. 



Billings. 'Figures and Descriptions of Canadian Organic Re- 

 mains,' Decade iii. 1858. 



34. "Notes on the Structure of the Crinoidea, Cystidea, and Blas- 



toidea." E. Billings. ' Palaeozoic Fossils,' vol. ii. 1874. 



35. "Ueber Cystideen." Von Buch. 1845. 



36. " Russische Sphseroniten." Von Volborth. 1846. 



37. " British Fossil Cystidese." Edward Forbes. ' Mem. Geol. Survey,' 



vol. ii. part ii. 1848. 



38. " Monographic der fossilen Krinoideen-Familie der Blastoideen." 



Ferdinand Roenier. 1851. 



39. " Notes on Echinodermata." Rofe. ' Geol. Mag.,' Dec. i., vol. ii. 



1865. 



40. " Palaeontology of New York." James Hall. Vols. i.-iii. 1843- 



1859. (Descriptions of Silurian Crinoids and Cystideans.) 



41. "Geology of Iowa.," vol. i. part ii. James Hall. 1858. (De- 



scriptions of Carboniferous Crinoids and Blastoids.) 



42. "Twentieth Report on the State Cabinet." James Hall. 1868. 



(Silurian Cystideans.) 



43. "Palaeontology of Illinois," vol. v. Meek and Worthen. 1873. 



(Carboniferous Crinoids and Blastoids.) 



44. " Palaeontology of Ohio," vols. i. and ii. Meek. 1873 and 1875. 



(Descriptions of Silurian and Carboniferous Crinoids.) 



45. " Lethaea Rossica." Eichwald. 1860. 



46. " Petref. Germanise." Goldfuss. 1826. 



47. "Holopus and Cyathidium." Sir C. Wyville Thomson. <Proc. 



Roy. Soc., Edin,' vol. ix. 1877. 



48. "Structure of Palaeozoic Crinoids." Wachsmuth. 'Amer. Journ. 



Sci. and Arts.' 1877. 



49. "The Palaeozoic Crinoids." Sir C. Wyville Thomson. 'Trans. 



Roy. Soc., Edin.' 1871. 



50. "Structure and Classification of Crinoids." Liitken. 'Geol. 



Mag.,' Dec. i., vol. iv. 1867. 



51. "Structure of Crinoidea." Beyrich. 'Ann. and Mag. Nat. Hist.,' 



ser. iv., vol. viii. 1871. 



