6Essay on the Theory of the Earth (pt. 5)
46The monster-hunters (pt. 1)
7Essay on the Theory of the Earth (pt. 6)
47The monster-hunters (pt. 2)
8Essay on the Theory of the Earth (pt. 7)
48The monster-hunters (pt. 3)
9The Ancient Life History of the Earth (pt. 1)
49The monster-hunters (pt. 4)
10The Ancient Life History of the Earth (pt. 2)
50Some Salient Points in the Science of the Earth (pt. 1)
11The Ancient Life History of the Earth (pt. 3)
51Some Salient Points in the Science of the Earth (pt. 2)
12The Ancient Life History of the Earth (pt. 4)
52Some Salient Points in the Science of the Earth (pt. 3)
13The Ancient Life History of the Earth (pt. 5)
53Some Salient Points in the Science of the Earth (pt. 4)
14The Ancient Life History of the Earth (pt. 6)
54Some Salient Points in the Science of the Earth (pt. 5)
15The Ancient Life History of the Earth (pt. 7)
55Some Salient Points in the Science of the Earth (pt. 6)
16The Chain of Life in Geological Time (pt. 1)
56Some Salient Points in the Science of the Earth (pt. 7)
17The Chain of Life in Geological Time (pt. 2)
57Geology and Inhabitants of the Ancient World
18The Chain of Life in Geological Time (pt. 3)
58The Geological History of Fossil Butte National Monument and Fossil Basin
19The Coal Measures Amphibia of North America (pt. 1)
59Petrified Forest National Monument, Arizona
20The Coal Measures Amphibia of North America (pt. 2)
60Palæontological Report of the Princeton Scientific Expedition of 1877 (pt. 1)
21The Coal Measures Amphibia of North America (pt. 3)
61Palæontological Report of the Princeton Scientific Expedition of 1877 (pt. 2)
22The Coal Measures Amphibia of North America (pt. 4)
62Australasian Fossils: A Students' Manual of Palaeontology (pt. 1)
23The Coal Measures Amphibia of North America (pt. 5)
63Australasian Fossils: A Students' Manual of Palaeontology (pt. 2)
24The Coal Measures Amphibia of North America (pt. 6)
64Australasian Fossils: A Students' Manual of Palaeontology (pt. 3)
25Two New Pelycosaurs from the Lower Permian of Oklahoma
65Australasian Fossils: A Students' Manual of Palaeontology (pt. 4)
26Extinct Monsters (pt. 1)
66A New Order of Fishlike Amphibia From the Pennsylvanian of Kansas
27Extinct Monsters (pt. 2)
67A New Genus of Pennsylvanian Fish (Crossopterygii, Coelacanthiformes) from Kansas
28Extinct Monsters (pt. 3)
68Cave Hunting (pt. 1)
29Extinct Monsters (pt. 4)
69Cave Hunting (pt. 2)
30The cretaceous birds of New Jersey
70Cave Hunting (pt. 3)
31The Pleistocene of North America and its vertebrated animals (pt. 1)
71Cave Hunting (pt. 4)
32The Pleistocene of North America and its vertebrated animals (pt. 2)
72Cave Hunting (pt. 5)
33The Pleistocene of North America and its vertebrated animals (pt. 3)
73Cave Hunting (pt. 6)
34The Pleistocene of North America and its vertebrated animals (pt. 4)
74Pleistocene Soricidae from San Josecito Cave, Nuevo Leon, Mexico
35The Pleistocene of North America and its vertebrated animals (pt. 5)
75A Pictorial Atlas of Fossil Remains (pt. 1)
36The Pleistocene of North America and its vertebrated animals (pt. 6)
76A Pictorial Atlas of Fossil Remains (pt. 2)
37The Pleistocene of North America and its vertebrated animals (pt. 7)
77A Pictorial Atlas of Fossil Remains (pt. 3)
38The Pleistocene of North America and its vertebrated animals (pt. 8)
78Fossils (pt. 1)
39The Pleistocene of North America and its vertebrated animals (pt. 9)
79Fossils (pt. 2)
40The Pleistocene of North America and its vertebrated animals (pt. 10)
80Remarks on some fossil impressions in the sandstone rocks of Connecticut River