152 The American Geologist. September, i899 
1878. 
New Species of Ceratodus, from the Jurassic. Ibid., vol. 15, p. 76. 
Notice of New Dinosaurian Reptiles. Ibid., pp. 241-244. 
Notice of New Fossil Reptiles. Ibid., pp. 409-411. 
Fossil Mammal from the Jurassic of the Rocky Mountains. Ibid., 
P- 459- 
New Pterodactyl from the Jurassic of the Rocky Mountains. Ibid., 
vol. 16, pp. 233-234. 
Principal Characters of American Jurassic Dinosaurs. Pt. I. Ibid., 
pp. 411-416, pis. iv-x. 
, Scientific Museums. 9th Ann. Rept. Amer. Mus. Nat. Hist., pp. 
52-54. 
1879. 
A new Order of Extinct Reptiles (Sauranodonta), from the 
Jurassic Formation of the Rocky Mountains. Amer. Jour. Sci. (3), 
vol. 17, pp. 85-86. 
Principal Characters of American Jurassic Dinosaurs. Pt. II. 
Ibid., pp. 86-92, pis. iii-x. 
Additional Characters of the Sauropoda. Ibid., pp. 181-182. 
The Vertebrae of Recent Birds. Ibid., pp. 266-269. 
Polydactyl Horses, Recent and Extinct. Ibid., pp. 499-505, i pi. 
Notice of a New Jurassic Mammal. Ibid., vol. 18, pp. 60-61. 
Additional Remains of Jurassic Mammals. Ibid., pp. 215-216. 
History and Methods of Palaeontological Discovery. Nature, vol. 
20. pp. 494-499 and 515-521, London; and Amer. Jour. Sci. (3), vol. 18, 
pp. 323-359. 
Notice of New Jurassic Mammals. Ibid., pp. 396-398. 
Notice of New Jurassic Reptiles. Ibid., pp. 501-505, pi. iii. 
Peabody Museum. Yale Book, vol. 2, pp. 178-186. 
1880. 
New Characters of Mosasauroid Reptiles. Amer. Jour Sci. (3), 
vol. 19, pp. 83-87, pi. i. 
The Limbs of Sauranodon, with Notice of a new Species. Ibid., 
pp. 169-171. 
Principal Characters of American Jurassic Dinosaurs. Pt. III. 
Ibid., pp. 253-259, pis. vi-xi. 
The Sternum in Dinosaurian Reptiles. Ibid., pp. 395-396, pi. xviii. 
Note on Sauranodon. Ibid., p. 491. 
Odontornithes: a Monograph on the Extinct Toothed Birds of 
North America. With 34 plates and 40 woodcuts. 4°, xv-|-20i pp. 
U. S. Geol. Exploration 40th Parallel, vol. 7, Washington; and Mem. 
Peabody Mus. Yale Coll., vol. i. 
Notice of Jurassic Mammals representing two New Orders. Amer. 
Jour. Sci. (3), vol. 20, pp. 235-239. 
1881. 
Principal Characters of American Jurassic Dinosaurs. Pt. IV. 
Spinal Cord, Pelvis, and Limbs of Stegosaurus. Ibid., vol. 21, pp. 
167-170, pis. vi-viii. 
