PLATE I. 



Figs. 142 are drawn in natural size. 

 Fig. 1. Cladophlebis sp. 



2. Sphenopteris sp. a. 



3. Sphenopteris sp. b. 



4. Sphenopteris sp. c. 



5 & 6. Sphenopteris (Adiantites) sp. d. 



7. Pterophyllum ? sp. 



819. Ginkgo polaris Nath. 

 20 & 21. Ginkgo polaris Nath. var. pygmcea. 

 22 24. Ginkgo sp. 

 2530. Feildenia sp. 



31. Podozamites? sp. 



32. Feildenia? 



33. Male flower of Ginkgo. 



34. Czekanotvskia ? 



35. Czekanotvskia cf. rigida Heer. 

 3638. Czekanorvskia? 



39 41. Phoenicopsis cf. angustifolia Heer. 



42. Abietites? sp. 



Figs 4357 are magnified drawings. 



43. Cladophlebis sp. (Fig. 1). 



44. Sphenopteris sp. a. (Fig. 2). 



45. Sphenopteris sp. b. (Fig. 3). 



46. Sphenopteris sp. c. (Fig. 4). 



47 & 48. Sphenopteris (Adiantites) sp. d. (Figs. 5 & 6). 



49. Male flower of Ginkgo (Fig. 33). 



50. Ginkgo polaris Nath. var. pygmcea. (Fig. 20). 



51. Ginkgo polaris Nath. (Fig 18). 



52. Ginkgo polaris Nath. var. pygmcea (Fig. 21). 



53. Abietites sp. (Fig. 42). 



54. Czekanotvskia cf. rigida Heer. (Fig. 35). 



55. Czekanotvskia? (Fig. 34). 



56. Leaf of Taxites with parasitic fungus. 56 a, part of 

 fig. 56 still more magnified. 



57. Pterophyllum? sp. (Fig. 7). 



