Vi BULL. GEOL. SOC. AM., VOL. 3. 



Pns*e 



Proceedings (Washington) : Figure 1 — Scolithus shepardi 32 



2 " n nicalis 33 



3 " linearis 34 



« « << ^ « u 34. 



" " " 5 " clintonensis 35 



G " linearis 36 



" " " 7 — Planolites annvlarius 36 



" " " 8 — Scolithus canadensis 37 



" " " 9 " minutus 38 



10 " " 38 



11 " tuberosus 39 



12 " woodi 39 



" " " 13 " " 40 



" " " 14 — Eophyton (Scolithus) dispar 41 



" 15— Scolithus delicatulus 41 



" " " 16 — Ideal Section showing the Mode of 



Occurrence of the nodular Ores 46 



" " " 17— Ideal Section showing the Mode of Oc- 

 currence of the laminated Ores. ... 47 



" " " 18— Sandstone Dike number 1 51 



19— Eastern End of Dike number 1 52 



20— Dike number 2 53 



(1 It II .)1 II II II XJ. 



" " " 22— General View of Dike number 2 55 



" " " 23— The Development of the toelemnitie 



Fauna at the End of the Jurassic 

 and the Beginning of the Cretaceous. 62 



" " " 24— Section through Manzati Valley 82 



25— Sketch Map of Missouri 109 



26— Ideal Section through the Ozark Up- 

 lift Ill 



27— Ideal Section of the Coal Measures of 



Missouri and Iowa 115 



" " " 28— Ideal Section of the Coal Measures of 



Missouri and Iowa restored to hori- 

 zontal Attitude 116 



" " " 29 — Ideal Representation of the Beginning 



of Coal Measure Deposition 116 



" " " 30 — Ideal Representation of a complete 



Cycle of Deposition of Coal Meas- 

 ures, and of their Mode of Accumu- 

 lation 117 



" " " 31— Ideal Illustration of the Accumulation 



of the Coal Measures 119 



" " " 32 — Ideal Representation of the Missouri 



Coal Measures 119 



Walcott: Figure 1— Diagramatic Section of the Canyon City Silurian (Ordo- 



vician) Rocks 154 



