The origin of a land flora, a theory based upon the facts of alternation - Bower, F. O. (Frederick Orpen), 1855 -1948 (Macmillan and Co., Ltd, 1908)

The origin of a land flora : a theory based upon the facts of alternation - Bower, F. O. (Frederick Orpen), 1855 -1948 (Macmillan, 1908)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1896)

Our native ferns and how to study them; with synoptical descriptions of the North American species - Underwood, Lucien Marcus, 1853 -1907 ([Leader Publishing Co., Printers], 1881)

Our native ferns and their alies : with synoptical descriptions of the American Pteridophyta north of Mexico - Underwood, Lucien Marcus, 1853 -1907 (H. Holt, 1896)

Our native ferns and their allies : with synoptical descriptions of the American pteridophyta north of Mexico - Underwood, Lucien Marcus, 1853 -1907 (Henry Holt and company, 1888)

Our native ferns and their allies : with synoptical descriptions of the American Pteridophyta north of Mexico - Underwood, Lucien Marcus, 1853 -1907 (Leader Pub. Co, 1881)

Our native ferns and their allies : with synoptical descriptions of the American Pteridophyta north of Mexico - Underwood, Lucien Marcus, 1853 -1907 (H. Holt, 1896)

Our native ferns and their allies; with synoptical descriptions of the American Pteridophyta north of Mexico - Underwood, Lucien Marcus, 1853 -1907 (H. Holt, 1900)

Our native ferns and their allies; with synoptical descriptions of the American Pteridophyta north of Mexico - Underwood, Lucien Marcus, 1853 -1907 (H. Holt and company, 1888)

Our native ferns and their allies; with synoptical descriptions of the American "Pteridophyta" north of Mexico - Underwood, Lucien Marcus, 1853 -1907 (Holt, 1888)

Our native ferns and their allies; with synoptical descriptions of the American Pteridophyta north of Mexico - Underwood, Lucien Marcus, 1853 -1907 (H.Holt, 1900)

Our native ferns and their allies with synoptical descriptions of the American Pteridophyta north of Mexico - Underwood, Lucien Marcus, 1853 -1907 (H. Holt, 1888)

Our native ferns and their allies with synoptical descriptions of the American pteridophyta north of Mexico - Underwood, Lucien Marcus, 1853 -1907 (H. Holt, 1900)

Outline classification of the vegetable kingdom - Weiss, F. E. (Frederick Ernest), 1865 -1953 (J.E. Cornish, 1892)

Outlines of classification of plants - Penhallow, D. P. (David Pearce), 1854 -1910 (E.M. Renouf, 1895)

Outlines of plant life : with special reference to form and function - Barnes, Charles Reid, 1858 -1910 (Henry Holt and Company, 1900)

Outlines of the history of botany - Harvey-Gibson, R. J. (Robert John), 1860 -1929 (Black, 1919)

Outlines of the history of botany - Harvey-Gibson, R. J. (Robert John), 1860 -1929 (A.& C. Black, 1919)

Pacific science - University of Hawaii. (University Press of Hawaii, 1947)

Pacific science - University of Hawaii. (University Press of Hawaii, 1956)

Pacific science - University of Hawaii. (University Press of Hawaii, 1959)

Pacific science - University of Hawaii. (University Press of Hawaii, 1960)

Pacific science - University of Hawaii. (University Press of Hawaii, 1962)

Pacific science - University of Hawaii. (University Press of Hawaii, 1965)

Pacific science - University of Hawaii. (University Press of Hawaii, 1967)

Pacific science - University of Hawaii. (University Press of Hawaii, 1968)

Pacific silver fir : a bibliography with abstracts - Williams, Carroll B. (Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1965)

Die palaeobotanische Literatur : bibliographische Übersicht über die Arbeiten aus dem Gebiete der Palaeobotanik - Jongmans, W. (Willem), 1878 -1957 (Fischer, 1910)

Die palaeobotanische Literatur : bibliographische Übersicht über die Arbeiten aus dem Gebiete der Palaeobotanik - Jongmans, W. (Willem), 1878 -1957 (Fischer, 1911)

Die palaeobotanische Literatur : bibliographische Übersicht über die Arbeiten aus dem Gebiete der Palaeobotanik - Jongmans, W. (Willem), 1878 -1957 (Fischer, 1913)

Palaeontology - Palaeontological Association (Palaeontological Association, 1960)

Palaeontology - Palaeontological Association (Palaeontological Association, 1962)

Palaeontology - Palaeontological Association (Palaeontological Association, 1963)

Palaeontology - Palaeontological Association (Palaeontological Association, 1965)

Palaeontology - Palaeontological Association (Palaeontological Association, 1966)

Palaeontology - Palaeontological Association (Palaeontological Association, 1967)

Palaeontology - Palaeontological Association (Palaeontological Association, 1969)

Palaeontology - Palaeontological Association (Palaeontological Association, 1970)

Palaeontology - Palaeontological Association (Palaeontological Association, 1971)

Palaeontology - Palaeontological Association (Palaeontological Association, 1972)