231 Free Images of Robert Bruce Horsfall

a history of land mammals in the western hemisphere (1913)audubon society educational leafletslist of the cenozoic life of wyomingtroglodytes aedon (illustrations)portraits and habits of our birdsbird lore (1916)list of the prehistoric life of coloradolist of the prehistoric life of montanalist of the cenozoic life of montanaextinct mammals
Ptilodus, 1913
multituberculata life restorationsrobert bruce horsfall
ExtmDinictis1921-029-11, 1913
a history of land mammals in the western hemisphere (1913)robert bruce horsfall
Extm Glossotherium robustum rbh-hlmwh01913-12, 1913
folivora illustrationsglossotherium
Smilodon and Canis dirus, 1913
smilodon fatalis life restorationsaenocyon life restorations
Stenomylus, 1913
stenomylus life restorationsstenomylus hitchcocki
R. Bruce Horsfall with bobcats (cropped), Robert Bruce Horsfall, 1916
robert bruce horsfalllynx rufus (juvenile)
Hoplophoneus1, 1913
a history of land mammals in the western hemisphere (1913)robert bruce horsfall
Poebrotherium, 1913
robert bruce horsfallparatylopus
Merycodus osborni, 1913
robert bruce horsfallramoceros
Robert Bruce Horsfall and 2 brown bears, Robert Bruce Horsfall, Taken inĀ 1916
1916 photographs of the united statesrobert bruce horsfall
Teleoceras Horsfall, 1913
robert bruce horsfallteleoceras
Hyrachyus eximius, 1913
robert bruce horsfallhyrachyus
Robert Bruce Horsfall with camera, Robert Bruce Horsfall, 1916
robert bruce horsfall
R. Bruce Horsfall with bobcats, Robert Bruce Horsfall, 1916
robert bruce horsfalllynx rufus (juvenile)
Bruce Horsfall with a bear cub, Robert Bruce Horsfall, 1916
robert bruce horsfallpeople with bears
Hyracodon nebrascensis (Robert Bruce Horsfall), 1913
hyracodon life restorationsrobert bruce horsfall
Bird-Lore-6-5 0184, Robert Bruce Horsfall, September 1904
bird-lore, volume 6, no. 5bird lore (1904)
Pantolambda Horsfall, 1913
robert bruce horsfallpantolambda
Taeniolabis taoensis, 1913
robert bruce horsfalltaeniolabis
Bird-Lore-6-5 0184-scan, Robert Bruce Horsfall, September 1904
bird-lore, volume 6, no. 5bird lore (1904)
Rainbow Colors, Robert Bruce Horsfall
st. nicholas (magazine)/volume 40/part 2/number 11st. nicholas (magazine)/volume 40/part 2
Foundations of botany BHL23642209, Robert Bruce Horsfall
foundations of botanyhummingbirds in art
Aktautitan hippopotamopus, Robert Bruce Horsfall, 1913
brontotheriidae life restorationsaktautitan
Foundations of botany BHL23642221, Robert Bruce Horsfall
foundations of botanyrobert bruce horsfall
A year with the birds (1917) (14746803871), Robert Bruce Horsfall, 1917
troglodytes aedon (illustrations)a year with the birds (1917)
The American natural history (Pl. 1) (8801726186), Robert Bruce Horsfall, 1914
the american natural history - a foundation of useful knowledge of the higher animals of north america (1914)robert bruce horsfall
Promerycochoerus, 1913
promerycochoerus carrikerirobert bruce horsfall
Synoplotherium, 1913
robert bruce horsfallsynoplotherium
A year with the birds (1916) (14565788497), Robert Bruce Horsfall, 1916
troglodytes aedon (illustrations)a year with the birds (1916)
FMIB 41549 Mallard Ducks, Robert Bruce Horsfall, 1919
anas platyrhynchos in flight (mixed pairs)anas platyrhynchos (illustrations)
The American natural history (Plate) (6810163790), Robert Bruce Horsfall, 1914
the american natural history - a foundation of useful knowledge of the higher animals of north america (1914)robert bruce horsfall
The American natural history (Plate) (6956276721), Robert Bruce Horsfall, 1914
the american natural history - a foundation of useful knowledge of the higher animals of north america (1914)robert bruce horsfall
Neohipparion, 1913
neohipparion life restorationsrobert bruce horsfall
Mammuthus columbi, 1913
robert bruce horsfallobsolete paleoart
A History of Land Mammals in the Western Hemisphere - wolverine, Robert Bruce Horsfall, 1913
a history of land mammals in the western hemisphere (1913)gulo gulo luscus
Eocardia (Dicardia) excavata, Robert Bruce Horsfall, 1903
skeletons of extinct mammalseocardia
Phenacodus Horsfall, 1913
robert bruce horsfallphenacodus
Macrauchenia, 1913
robert bruce horsfallobsolete paleoart
Nighthawk-PHOB-019, Robert Bruce Horsfall, 1925
audubon society educational leafletsportraits and habits of our birds
Mesohippus bairdi Horsfall, 1913
robert bruce horsfallmesohippus bairdi
Leontinia gaudryi, 1913
robert bruce horsfallleontinia
Eohippus Horsfall, 1913
eohippus life restorationsrobert bruce horsfall
A History of Land Mammals in the Western Hemisphere - elk, Robert Bruce Horsfall, 1913
a history of land mammals in the western hemisphere (1913)cervus canadensis (historical images)
Pyrotherium, 1913
robert bruce horsfallpyrotherium
Leptauchenia, 1913
robert bruce horsfallsespia
Protoceras Horsfall, 1913
protoceras life restorationsrobert bruce horsfall
Gomphotherium Horsfall, 1913
a history of land mammals in the western hemisphere (1913)gomphotherium life restorations
Syndyoceras, 1913
robert bruce horsfallsyndyoceras
Oxyaena, 1913
robert bruce horsfalloxyaena
Meniscotherium restoration, 1913
robert bruce horsfallmeniscotherium
Megatherium americanum, 1913
megatherium life restorationsrobert bruce horsfall
Upland Plover-PHOB 0317, Robert Bruce Horsfall, 1925
audubon society educational leafletsportraits and habits of our birds
Mammut americanum Horsfall, 1912
mammut americanum life restorationsrobert bruce horsfall
Toxodon platensis, 1913
robert bruce horsfalltoxodon
Portraits and Habits of Our Birds-1 0019-scan, Robert Bruce Horsfall, 1925
audubon society educational leafletsportraits and habits of our birds
Portraits and Habits of Our Birds-1 0019, Robert Bruce Horsfall, 1925
audubon society educational leafletsportraits and habits of our birds
Hyaenodon and Leptomeryx, 1913
hyaenodon horridus life restorationsrobert bruce horsfall
Procamelus elrodi, 1913
robert bruce horsfallaepycamelus elrodi
FMIB 41545 Rainbow--Premier of Game Trout More than two and a half million were planted in the streams of Oregon during 1916, Robert Bruce Horsfall, 1917
oncorhynchus mykiss illustrationsdrawings of fish
Metamynodon planifrons, 1913
robert bruce horsfallmetamynodon
The warblers of North America (1917) (14563945148), Robert Bruce Horsfall, 1917
leiothlypis ruficapilla (illustrations)the warblers of north america (1917)
The American Museum journal (c1900-(1918)) (18159356025), Robert Bruce Horsfall, 1908
the american museum journal - zoologythe american museum journal (1908)
Patriofelis ferox, 1913
a history of land mammals in the western hemisphere (1913)robert bruce horsfall
Moropus restoration, 1913
moropus life restorationsrobert bruce horsfall
Tritemnodon agilis, 1913
robert bruce horsfalltritemnodon
Bird-lore (1909) (14726677586), Robert Bruce Horsfall, 1909
robert bruce horsfallbird lore (1909)
St. Nicholas (serial) (1873) (14772192111), Robert Bruce Horsfall, 1873
robert bruce horsfallst. nicholas, 1902
The warblers of North America (1907) (14770033973), Robert Bruce Horsfall, 1907
leiothlypis ruficapilla (illustrations)the warblers of north america (1907)
St. Nicholas (serial) (1873) (14592584319), Robert Bruce Horsfall, 1873
robert bruce horsfallst. nicholas, 1899
Bird-lore (1913) (14568878308), Robert Bruce Horsfall, 1913
robert bruce horsfallbird lore (1913)
Bird-lore (1917) (14569058190), Robert Bruce Horsfall, 1917
robert bruce horsfallbird lore (1917)
St. Nicholas (serial) (1873) (14592754687), Robert Bruce Horsfall, 1873
robert bruce horsfallst. nicholas, 1899
Bird-lore (1916) (14568768799), Robert Bruce Horsfall, 1916
robert bruce horsfallbird lore (1916)
Bird-lore (1917) (14755377762), Robert Bruce Horsfall, 1917
robert bruce horsfallbird lore (1917)
Bird-lore (1921) (14751716242), Robert Bruce Horsfall, 1921
certhia americana (illustrations)bird lore (1921)
Bird-lore (1916) (14755100542), Robert Bruce Horsfall, 1916
robert bruce horsfallbird lore (1916)
Bird-lore (1911) (14568919377), Robert Bruce Horsfall, 1911
robert bruce horsfallbird lore (1911)
St. Nicholas (serial) (1873) (14597423100), Robert Bruce Horsfall, 1873
robert bruce horsfallst. nicholas, 1904
Bird-lore (1907) (14568919690), Robert Bruce Horsfall, 1907
robert bruce horsfallbird lore (1907)
The warblers of North America (1917) (14563944399), Robert Bruce Horsfall, 1917
the warblers of north america (1917)robert bruce horsfall
The warblers of North America (1917) (14563921130), Robert Bruce Horsfall, 1917
the warblers of north america (1917)robert bruce horsfall
Uintatherium pair, 1913
uintatherium life restorationsrobert bruce horsfall
St. Nicholas (serial) (1873) (14784221275), Robert Bruce Horsfall, 1904
pteranodon life restorations (20th century)st. nicholas, 1904
Bird lore (1907) (14569191857), Robert Bruce Horsfall, 1907
robert bruce horsfallbird lore (1907)
Bird lore (1911) (14732273696), Robert Bruce Horsfall, 1911
robert bruce horsfallbird lore (1911)
Annual report of the New Jersey State Museum (1908) (19177880268), Robert Bruce Horsfall, 1908
annual report of the new jersey state museum, 1907 (1908)spinus tristis (illustrations)
Bird lore (1909) (14568979439), Robert Bruce Horsfall, 1909
robert bruce horsfallbird lore (1909)
Bird lore (1916) (14569020547), Robert Bruce Horsfall, 1916
robert bruce horsfallbird lore (1916)
Bird lore (1907) (14755330642), Robert Bruce Horsfall, 1907
robert bruce horsfallbird lore (1907)
Bird lore (1906) (14750940472), Robert Bruce Horsfall, 1906
robert bruce horsfallbird lore (1906)
Bird lore (1918) (14568612788), Robert Bruce Horsfall, 1918
robert bruce horsfallbird lore (1918)
Bird lore (1913) (14745862421), Robert Bruce Horsfall, 1913
robert bruce horsfallbird lore (1913)
Bird lore (1910) (14755474975), Robert Bruce Horsfall, 1910
robert bruce horsfallbird lore (1910)
Bird lore (1914) (14775604823), Robert Bruce Horsfall, 1914
platalea ajaja (illustrations)bird lore (1914)
Bird lore (1911) (14754948172), Robert Bruce Horsfall, 1911
bird lore (1911)bird lore (1914)
Bird lore (1908) (14564257869), Robert Bruce Horsfall, 1908
robert bruce horsfallbird lore (1908)
Bird lore (1908) (14748506264), Robert Bruce Horsfall, 1908
robert bruce horsfallbird lore (1908)
Bird lore (1913) (14747149864), Robert Bruce Horsfall, 1913
robert bruce horsfallbird lore (1913)
Bird lore (1916) (14755460855), Robert Bruce Horsfall, 1916
robert bruce horsfallbird lore (1916)
Bird lore (1914) (14753363654), Robert Bruce Horsfall, 1914
antrostomus vociferus (illustrations)bird lore (1914)
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