BIBLIOGRAPHY 
A. SCIENTIFIC WORKS 
I. In Collaboration with Charles Wachsmuth 
1877. Revision of the Genus Bclernnocrinus, and Description of Two New Species. (Ameri- 
can Journal of Science (3), vol. xiv, 1877, PP- 253-266.) 
1878. Transition Forms in Crinoids. (Proc. Acad. Nat. Sci. Phil., 1878, pp. 224-266; 
I plate.) 
1879. Revision of the Palaeocrinoidea, part i. (Proc. Acad. Nat. Sci. Phil., 1879, PP- 226- 
379 ; plates 15-17-) 
1881. Revision of the Palaeocrinoidea, part ii. (Proc. Acad. Nat. Sci. Phil., 1881, pp. 177- 
414; plates 17-19.) 
1883. Remarks on GlyptocrUms and Retcocrinus, Two Genera of Lower Silurian Crinoids. 
(Am. Jour. Sci. (3), vol. xxv, 1883, pp. 255-268; i figure.) 
1883. Hyhocrimis, Haplocriniis and Bacrocrinus. (Am. Jour. Sci. (3), vol. xxvi, 1883, 
PP- 365-367-) 
1883. Descriptions of Fossil Invertebrates. (Illinois Geol. Surv., vol. vii, 1883, pp. 339-345.) 
1885. Revision of the Palaeocrinoidea, part iii, section i. (Proc. Acad. Nat. Sci. Phil., 
1885, pp. 225-364; plates 4-9.) 
1886. Revision of the Palaeocrinoidea, part iii, section 2. (Proc. Acad. Nat. Sci. Phil., 
1886, pp. 64-226.) 
1887. Summit Plates in Blastoids, Crinoids and Cystids, and Their Morphological Relations. 
(Proc. Acad. Nat. Sci. Phil., 1887, pp. 82-114; i plate.) 
1888. Discovery of the Ventral Structure of Taxocriniis and Haplocriniis, and Consequent 
IModifications in the Classification of the Crinoids. (Proc. .Acad. Nat. Sci. Phil., 
1888, pp. 337-362; 2 plates.) 
1888. Crntalocrinns, Its Structure and Zoological Position. (Proc. Acad. Nat. Sci. Phil., 
1888, pp. 364-390; 2 plates.) 
1890. Perisomic Plates of the Crinoids. (Proc. Acad. Nat. Sci. Phil., 1890, pp. 345-392; 
I plate.) 
1890. New Species of Crinoids and Blastoids from the Kinderhook Group of Le Grand, 
Iowa. (Illinois Geol. Surv., vol. viii, 1890, pp. 1 57-251 ; 3 plates.) 
1892. Description of Two New Genera and Eight Species of Camerate Crinoids from the 
Niagara Group. (American Geologist, vol. x, 1892, pp. 134-144.) 
1897. IMonograph of the North American Crinoidea Camerata. 4to, 3 vols., 800 pp. text, 
and atlas of 83 plates. (Memoirs Museum of Comparative Zoology, Harvard 
College, vols. xx and xxi, 1897. Reviewed under title “ An Epoch in American 
Science ” in Annals of Iowa, 3d series, vol. ii, 1896, pp. 345-364 ; under N. A. Fossil 
Crinoidea Camerata in Report of Iowa Geological Survey, vol. 22, 1913, pp. 69-88 ; 
and hy F. A. Bather in Geol. Magazine London, Dec., iv, vol. v, 1898, in 5 numbers, 
Nov., etc.) 
2. In Sole Authorship 
1884. On the Occurrence of the Lower Burlington Limestone in New Mexico. (American 
Journal of Science, vol. xxvii, 1884, pp. 97-103.) 
1899. Notice of a New Discovery Concerning Uintacrinus. (American Geologi.st, vol. xxiv, 
1899, p. 92.) 
1899. Slab of Uintacrinus Presented to the Aluseum of Comparative Zoology, Harvard. 
(Annual Report Mus. Comp. Zook, 1899, p. 5. with plate. Burlington Hawkeyc, 
Nov. 12, 1903.) 
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