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414. Law and Insanity. Amer. Nat. Vol. XVIII. 
415. Lydekker on Extinct Mammalia of India. Amer. Nat. Vol. 
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416. Marsh on Diplodocus. Amer. Nat. Vol. XVIII. 
417. Mechanical Evolution. Amer. Nat. Vol. XVIII. 
418. Mission Scientifique au Mexique, Recherches Zoologiques; 
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419. New Lake Basin of the White River Epoch. Pal. Bull. No. 
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420. Note on "Abnormal Deer Antlers from Texas," by J. D. 
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421. Note on Acceleration in Deer Antlers. Amer. Nat. Vol. 
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422. Note on the Phylogeny of the Vertebrata. Amer. Nat. Vol. 
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423. Observations on the Phylogeny of the Artiodactyla Derived 
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424. On Catagenesis. Amer. Nat. Vol. XVIII. Proc. Amer. Assoc. 
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425. On New Lemuroids from the Puerco Formation. Amer. 
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426. On the Distribution of the Loup Fork Formation in New 
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427. On the Punishment of the Insane. Amer. Nat. Vol. XVIII. 
428. On the Structure of the Feet in the Extinct Artiodactyla of 
North America. Pal. Bull. No. XXXIX. Proc. Amer. Assoc. Adv. 
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429. On the Structure of the Skull in the Elasmobranch Genu.-- 
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430. On the Tritubercular Type of the Molar Tooth in the Mam- 
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431. Original Research in Philadelphia. Amer. Nat. Vol. XVIII. 
432. Owen on Fossil Mammals. Amer. Nat. Vol. XVIII. 
433. Philadelphia Academy. Amer. Nat. Vol. XVIII. 
434. Practical Types of Mind. Amer. Nat. Vol. XVIII. 
435. Results of the Deep Sea Work of the Talisman. Amer. Nat. 
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436. Scientific Contracts. Amer. Nat. Vol. XVIII. 
437. Second Contribution to the Knowledge of the Puerco Epoch. 
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438. Synopsis of the Species of Oreodontidie. Pal. Bull. No. 
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439. The Amblypoda. Amer. Nat. Vol. XVIII. 
,440. The Batrachia of the Permian Period of North America. 
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441. The Choristodera. .Amer. Nat. Vol. XVIII. 
