Edward Drinker Cope. — King. 23 
300. The Genealogy of the American Rhinosceroses. Amer. Nat. 
Vol. XIV. 
301. The Manti Beds of Utah. Amer. Nat. Vol. XIV. 
302. The Northern Wasatch Fauna. Amer. Nat. Vol. XIV. 
303. The Structure of the Permian Ganocephala. Amer. Nat. Vol. 
XIV. 
1881. 
305. A Laramie Saurian in the Eocene. Amer. Nat. Vol. XV. 
306. A New Clidastes from New Jersey. Amer. Nat. Vol. XV. 
307. A New Genus of Catosomida. Amer. Nat. Vol. XV. 
308. A New Genus of Perissodactyla Diplartha. Amer. Nat. Vol. 
XV. 
309. A New Type of Perissodactyla. Amer. Nat. Vol. XV. 
310. Belodon in New Mexico. Amer. Nat. Vol. XV. 
311 Classification of the Perissodactyla. Proc. Amer. Philos. 
Soc. Vol. XX. 
312. Contributions to the History of the Vertebrata of the Lower 
Eocene of Wyoming and New Mexico, Made During 1881. Pal. Bull. 
No. XXXIV. Proc. Amer. Philos. Soc. Vol. XX. 
313. Criticism of Mr. Barnes' Metaphysical Definitions. Amer. 
Nat. Vol. XV. 
314. Description and Iconography in Biology. Amer. Nat. Vol. 
XV. 
315. Eocene Plagianlacid.-e. Amer. Nat. Vol. XV. 
316. Geology of the Lake Valley Mining District. Amer. Nat. Vol. 
XV. 
317. Mammalia of the Lowest Eocene. Amer. Nat. Vol. XV. 
318. Miocene Dogs. Amer. Nat. Vol. XV. 
319. Notes on Creodonta. Amer. Nat. Vol. XV. 
320. On Some Mammalia of the Lowest Eocene Beds of New 
Mexico. Pal. Bull. No. XXXIII. Proc. Amer. Philos. Soc. Vol. 
XIX. 
321. On the C.inid;e of the Loup Fork Epoch. Bull. U. S. Geol. 
Surv. Terrs. Vol. VI. No. II. 
322. On the Effects of Impacts and Strains on the Feet of Mam- 
malia. Amer. Nat. Vol. XV. 
323. On the Origin of the Foot Structures of the Ungulates. Amer. 
Nat. Vol. XV. 
324. Review of the Rodentia of the Miocene Period of North 
America. Bull. U. S. Geol. Surv. Terrs. Vol. VI. No. II. 
325. Supplement to the Extinct Batrachia and Reptilia of North 
.\merica. Trans. Amer. Philos. Soc. (N. S.) Vol. XV. 
326. The Fauna of the Nickajack Cave (Written with .'\. S. Pack- 
ard, Jr.). Amer. Nat. Vol. XV. 
2,2]. The Japanese Lap-Dog. Amer. Nat. Vol. XV. 
328. The Permian Formation of New Mexico. Amer. Nat. Vol. 
XV. 
329. The Systematic Arrangement of the Order Perissodactyla. 
Proc. Amer. Philos. Soc. Vol. XIX. 
