THE AMERICAN NATURALIST. [Vol. XXXVIII. 



71. Vertebrate Fossils of the Denver Basin, by O. C. Marsh. 

 Extract from Monographs U. S. Geol. Survey. [Review.] Amer. 

 Jour. Sci. April, 1897. Ser. 4, vol. 3, p. 349- 



72. Models of Trilobites. Trans. N. Y. Acad. Sci., 1896- 1897, vol. 

 16, 1898. Fourth Annual Reception, April 5-6, 1897, p. 43-44- 

 [Not signed.] 



73. The Systematic Position of the Trilobites, by J. S. Kingsley, 

 Tufts college ; with Remarks [p. 38-40] by C. E, Beecher. Amer. 



Trilobites. Studies in Evolution. 1901. p. 163-165. 



74. [Development of the Brachiopoda, Part 3]. Morpholog>- of the 

 Brachia. [In Charles Schuchert's A Synopsis of American Fossil 

 Brachiopoda]. Bull. 87, U. S. Geol. Surv. 1897. Chap. 4, P- 105-1 12, 

 fig. 2-6. [For Parts i and 2 see numbers 34 and 42 this list.] 

 [Reprinted.] Studies in Evolution. 1901. p. 274-285, fig. 121-125. 



Amer. Nat. Dec, 1897. Vol. 31, p. 1053-1055. 



1898. 76. Catalogue of the Tertiary Mollusca m the Department of 

 Geolog>', British Museum (Nat. Hist.) Pt. 1. The Austrahan Tertiary 

 Mollusca; by George F. Harris. [Review.] Amer. Nat. Feb., 1898. 

 Vol. 32, p. 134-135- 



77. Polish Palaeozoics ; by Gurich. [Review.] Amer. Nat. April, 



1898. Vol. 32, p. 298. 



78. The Origin and Significance of Spines : A Study in Evolution. 

 Am. Jour. Sci. July to Oct., 1898. Ser. 4, vol. 6, p. 1-20, 125- 136, 

 249-268, 329-359, fig- 1-73- Pl- '- 



[Reprinted.] Studies in Evolution. 1901. p. 3-105, H- 1-74- pl- ^■ 



1899. 79. The Cretaceous Foraminifera of New Jersey, by R. M. Bagg 

 Jr. [Review.] Am. Geol. Feb., 1899. Vol. 23, p. 126. 



80. Othniel Charles Marsh. [Obituary.] Amer. Jour. Sci. June, 



1899. Ser. 4, vol. 7, p. 403-428. Portrait. 



81. [Letter.] To the Corporation of Yale University: [concerning Pro- 

 fessor Beecher's Gift to Yale University]. Science. July 14, 1899. 



82. Othniel Charles Marsh. [Obituary.] Amer. (ieol. Sept., 1899. 

 Vol. 24, p. 135-1 57. Portraits as pl. 5-6. [Abridged with alterations 

 from Amer. Jour. Sci. June, 1899. Title 80.] 



1900. 83. Othniel Charles Marsh as an Ornithologist. The Osprey. Jan., 



