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Undated Fossil specimen of an insect Unidentified photographer [photographs, lantern slides |
ca. 1906/1912 Fossil specimen of Panorpa a … Unidentified photographer [photographs, lantern slides |
Undated Fossil specimen of Phenacole … Unidentified photographer [photographs, lantern slides |
Undated Theodore Cockerell and an un … Unidentified photographer [photographs, lantern slides |
Undated Fossil specimen of Porana te … Unidentified photographer [photographs, lantern slides |
Undated Fossil specimen of Vitis flo … Unidentified photographer [photographs, lantern slides |
ca. 1906 Fossil specimen of Lomatia a … Unidentified photographer [photographs, lantern slides |
Undated Fossil type specimen of Sapi … Unidentified photographer [photographs, lantern slides |
Undated Fossil specimen of Castanea … Unidentified photographer [photographs, lantern slides |
Undated Fossil specimen of Heyderia … Unidentified photographer [photographs, lantern slides |
Undated Fossil specimen of an insect Unidentified photographer [photographs, lantern slides |
Undated Fossil specimen of Panax and … Unidentified photographer [photographs, lantern slides |
Undated Fossil specimen of Phenanthe … Unidentified photographer [photographs, lantern slides |
Undated Fossil type specimen of Chlo … Unidentified photographer [photographs, lantern slides |
Undated Fossil specimen of Populus l … Unidentified photographer [photographs, lantern slides |
Undated Fossil specimen of Tipula ma … Unidentified photographer [photographs, lantern slides |
ca. 1906/1912 Fossil specimen of Agrion te … Unidentified photographer [photographs, lantern slides |
Undated Fossil specimen of Dryobius … Unidentified photographer [photographs, lantern slides |
Undated Fossil specimen of Calyptapi … Unidentified photographer [photographs, lantern slides |
Undated Fossil specimen of Pellaea a … Unidentified photographer [photographs, lantern slides |
ca. 1906 Fossil specimen of Microstyl … Unidentified photographer [photographs, lantern slides |
Undated Fossil specimens of Trichoph … Unidentified photographer [photographs, lantern slides |
Undated Fossil specimen of Stipa lam … Unidentified photographer [photographs, lantern slides |
Undated Fossil specimen of Myrica di … Unidentified photographer [photographs, lantern slides |
Undated Fossil type specimen of Syrp … Unidentified photographer [photographs, lantern slides |
Undated Fossil specimen of Rhus cori … Unidentified photographer [photographs, lantern slides |
Undated Fossil specimen of Phymatode … Unidentified photographer [photographs, lantern slides |
Undated Fossil specimen of Pinus whe … Unidentified photographer [photographs, lantern slides |
Undated Fossil type specimen of Quer … Unidentified photographer [photographs, lantern slides |
1909-02-17 Letter from W. M. Wheeler to … Wheeler, William Morton, 186 … [letters (correspondence), a |
1909-02-15 Letter from H. F. Wickham to … Wickham, H. F. (Henry Freder … [letters (correspondence), a |
1909-02-23 Letter from H. F. Wickham to … Wickham, H. F. (Henry Freder … [letters (correspondence), a |
1909-05-15 Letter from H. F. Wickham to … Wickham, H. F. (Henry Freder … [letters (correspondence), a |
1909-05-26 Letter from H. F. Wickham to … Wickham, H. F. (Henry Freder … [letters (correspondence), a |
1911-02-08 Letter from H. F. Wickham to … Wickham, H. F. (Henry Freder … [letters (correspondence), a |
1911-03-22 Letter from H. F. Wickham to … Wickham, H. F. (Henry Freder … [letters (correspondence), a |
1911-03-26 Letter from H. F. Wickham to … Wickham, H. F. (Henry Freder … [letters (correspondence), a |
1911-04-06 Letter from H. F. Wickham to … Wickham, H. F. (Henry Freder … [letters (correspondence), a |
1911-06-15 Letter from H. F. Wickham to … Wickham, H. F. (Henry Freder … [letters (correspondence), a |
1911-08-23 Letter from H. F. Wickham to … Wickham, H. F. (Henry Freder … [letters (correspondence), a |
Undated Letter from H. F. Wickham to … Wickham, H. F. (Henry Freder … [letters (correspondence), a |
1912-04-11 Letter from H. F. Wickham to … Wickham, H. F. (Henry Freder … [letters (correspondence), a |
1912-05-24 Letter from H. F. Wickham to … Wickham, H. F. (Henry Freder … [letters (correspondence), a |
1913-03-06 Letter from H. F. Wickham to … Wickham, H. F. (Henry Freder … [letters (correspondence), a |
1913-04-09 Letter from H. F. Wickham to … Wickham, H. F. (Henry Freder … [letters (correspondence), a |
1913-11-22 Letter from H. F. Wickham to … Wickham, H. F. (Henry Freder … [letters (correspondence), a |