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550. Oliver, F. W., Ueber die neuentdeckten Samen der Steinkohlenfame. 

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56. Scott, D. H., What were the carboniferous ferns ? Jour. Roy. Micr. Soc. 

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58. , The femlike seed plants of the carboniferous flora. Sci. papers 



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59. Zeiller, R., Une nouvelle classe de Gymnospermes: les Pteridospermdes. 

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62. Grand 'Eury, C, Sur les inflorescences des fougferes avec graines, etc. 

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63. Hill, T. G., On secondary thickening in recent Pteridophyta. New Phy- 

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64. KiDSTON, R., On the microsporangia of the Pteridospennae, with remarks 

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65. Oliver, F. W., "The origin of gymnosperms''; a discussion at the Linnean 

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66. , Pteridosperms and angiosperms. New Phytologist 5:232-242. 



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67. Scott, D. H., "The origin of gymnosperms"; a discussion at the Linnean 

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68. , On Sutcliffia insignis, a new type of MeduUoseae from the Lower 



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69. , The present position of paleozoic botany. Progressus rei botanicae 



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70. , The occurrence of germinating spores in Stauropteris Oldhamia. 



New Phytologist 5:170-172. 1906. 



71. SiOPES, M. C, A new fern from the Coal-measures: TubicauUs Sutclijfii, 

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72. Worsdell, W. C, The structure and origin of the Cycadaceae. Annals 

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73. Scott, D. H., and Maslen, Arthur J., The structure of the paleozoic seeds 

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