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1890, pp. 281—282. 
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pagos Inseln und Bemerkungen über den Ursprung der Insel- 
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. The Very Peculiar Tortoise, Carettochelys Ramsay, from New Guinea. 
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. American Box-Tortoises. Science, Vol. 17, No. 426, Apr. 3, 1891, 
pp. 190-191 
. The Horned Saurians of the Laramie Formation. Science, Vol. 17, 
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. The Lower Jaw of Sphenodon. Am. Naturalist, Vol. 25, May, 1891, 
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. Notes on the Trionychian Genus Pelochelys. Ann. Mag. Nat. Hist., 
(6) Vol. 7, May, 1891, pp. 445-44 
. Remarks on the Reptiles generally called Dinosauria. Am. Natural- 
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. On the Origin of the Galapagos Islands. Am. Naturalist, Vol. 25, 
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. On Intercalation of Vertebre. Journ. Morph., Vol. 4, No. 3, 1891, 
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. The Pelvis of the Testudinata, with Notes on the Evolution of the 
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. The Galapagos i Proceed. Am. Antiquar. Soc, Oct. 21, 
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