Category:1920 in biology

Subcategories

This category has the following 33 subcategories, out of 33 total.

Media in category "1920 in biology"

The following 112 files are in this category, out of 112 total.

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  A manual of Indian botany (1920) (20717579992).jpg 938 × 524; 116 KB
  
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  Annales de biologie lacustre (1920) (17578309154).jpg 1,996 × 2,894; 1.12 MB
  
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  Annales de biologie lacustre (1920) (18013064838).jpg 1,946 × 2,862; 975 KB
  
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  Annales de biologie lacustre (1920) (18013200130).jpg 2,066 × 2,894; 1.15 MB
  
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  Annales de biologie lacustre (1920) (18014713189).jpg 1,922 × 2,916; 1.14 MB
  
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  Annales de biologie lacustre (1920) (18174425716).jpg 1,442 × 2,994; 699 KB
  
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  Annales de biologie lacustre (1920) (18174440956).jpg 1,944 × 2,906; 952 KB
  
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  Archiv für Molluskenkunde (1920) (19709151753).jpg 2,136 × 3,120; 773 KB
  
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  Archiv für Molluskenkunde (1920) (20330133445).jpg 1,984 × 3,144; 841 KB
  
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  Archiv für Molluskenkunde (1920) (20330140845).jpg 2,008 × 3,304; 1.02 MB
  
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  Austral avian record; a scientific journal devoted primarily to the study of the Australian avifauna (1920) (19728610043).jpg 352 × 244; 11 KB
  
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  Aves Transverse sections through embryo fifth day after incubation.jpg 688 × 755; 357 KB
  
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  Biologisch-faunistische untersuchungen aus dem Öresund. V. Polychaeta. Mit einer Karte und 18 Textfiguren (1920) (20195072899).jpg 4,606 × 2,852; 1.08 MB
  
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  Bird lore (1920) (14569001507).jpg 1,814 × 2,596; 1.17 MB
  
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  Bird notes and news (1920) (14565353727).jpg 2,642 × 3,833; 2.81 MB
  
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  Bird-lore (1920) (14564061039).jpg 1,820 × 1,630; 675 KB
  
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  Bird-lore (1920) (14727810356).jpg 2,108 × 3,102; 1.34 MB
  
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  Bird-lore (1920) (14770675603).jpg 2,098 × 3,114; 1.44 MB
  
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  Birds in town and village, by W.H. Hudson.. (1920) (14747698334).jpg 1,008 × 1,532; 617 KB
  
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  Birds in town and village, by W.H. Hudson.. (1920) (20390009431).jpg 1,360 × 2,054; 691 KB
  
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  Blätter für Aquarien- und Terrarien-Kunde (1920) (20392601911).jpg 3,024 × 1,808; 1.66 MB
  
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  Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie (1920) (20376992186).jpg 2,336 × 2,106; 1 MB
  
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  Botánica descriptiva BHL11322102.jpg 2,482 × 1,718; 522 KB
  
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  British birds (1920) (14749420064).jpg 1,836 × 1,290; 564 KB
  
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  British birds (1920) (14751451962).jpg 1,412 × 2,012; 893 KB
  
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  British plants; their biology and ecology (1920) (20560778280).jpg 582 × 644; 101 KB
  
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  Bulletin de la Société linnéenne de Normandie (1920) (20247781199).jpg 1,484 × 3,072; 1.01 MB
  
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  Bulletin of the Brooklyn Entomological Society (1920) (20447152905).jpg 1,942 × 3,250; 1.45 MB
  
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  College botany; structure, physiology and economics of plants (1920) (20539398028).jpg 382 × 746; 50 KB
  
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  Comptes rendus des séances de la Société de biologie et de ses filiales (1920) (20486661590).jpg 1,530 × 458; 294 KB
  
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  Contributions to the biology of the Danish Culicidae (1920) (20502584019).jpg 926 × 618; 151 KB
  
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  Cytology, with special reference to the metazoan nucleus (1920) (20205695004).jpg 2,144 × 2,868; 1.08 MB
  
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  Cytology, with special reference to the metazoan nucleus (1920) (20207293123).jpg 2,066 × 3,130; 1.15 MB
  
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  Cytology, with special reference to the metazoan nucleus (1920) (20207380703).jpg 1,886 × 3,254; 1.2 MB
  
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  Cytology, with special reference to the metazoan nucleus (1920) (20207617933).jpg 1,878 × 3,268; 980 KB
  
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  Cytology, with special reference to the metazoan nucleus (1920) (20640173050).jpg 1,838 × 2,992; 474 KB
  
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  Cytology, with special reference to the metazoan nucleus (1920) (20640264578).jpg 2,138 × 3,026; 936 KB
  
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  Cytology, with special reference to the metazoan nucleus (1920) (20640289180).jpg 2,168 × 1,104; 253 KB
  
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  Cytology, with special reference to the metazoan nucleus (1920) (20641504409).jpg 1,456 × 3,404; 622 KB
  
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  Cytology, with special reference to the metazoan nucleus (1920) (20641792569).jpg 2,042 × 1,156; 267 KB
  
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  Cytology, with special reference to the metazoan nucleus (1920) (20801922776).jpg 2,076 × 2,980; 1.07 MB
  
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  Cytology, with special reference to the metazoan nucleus (1920) (20818690272).jpg 2,076 × 3,076; 1.13 MB
  
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  Cytology, with special reference to the metazoan nucleus (1920) (20818895262).jpg 2,094 × 3,054; 1.22 MB
  
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  Cytology, with special reference to the metazoan nucleus (1920) (20818931682).jpg 2,026 × 3,054; 961 KB
  
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  Cytology, with special reference to the metazoan nucleus (1920) (20819051202).jpg 1,700 × 924; 141 KB
  
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  Cytology, with special reference to the metazoan nucleus (1920) (20828254805).jpg 2,188 × 3,092; 856 KB
  
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  Cytology, with special reference to the metazoan nucleus (1920) (20828290435).jpg 2,198 × 2,972; 879 KB
  
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  Cytology, with special reference to the metazoan nucleus (1920) (20835310511).jpg 2,148 × 2,920; 973 KB
  
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  Cytology, with special reference to the metazoan nucleus (1920) (20835336721).jpg 2,000 × 2,872; 861 KB
  
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  Das Urogenitalsystem von Ampullaria gigas Spix (1920) (20652649590).jpg 3,132 × 2,460; 1.21 MB
  
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  Der Ornithologische Beobachter (1920) (20837515336).jpg 474 × 470; 78 KB
  
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  Die Leitungsbahnen im Nervensystem der wirbellosen Tiere (1920) (20743232638).jpg 1,410 × 3,092; 502 KB
  
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  Die Leitungsbahnen im Nervensystem der wirbellosen Tiere (1920) (20938534441).jpg 1,636 × 2,986; 452 KB
  
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  Die Planctoncopepoden der Adria. Versuch einer faunistischen Übersicht (1920) (20320383363).jpg 1,930 × 3,214; 747 KB
  
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  Diptera Brachycera (1920) (20769665448).jpg 2,194 × 3,408; 493 KB
  
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  Familiar studies of wild birds - their haunts and habits (1920) (14755234892).jpg 1,390 × 1,838; 565 KB
  
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  Heredity and evolution in plants (1920) (14740694876).jpg 1,342 × 1,840; 363 KB
  
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  Heredity and evolution in plants (1920) (14760448521).jpg 2,256 × 1,492; 401 KB
  
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  Heredity and evolution in plants (1920) (14761248684).jpg 1,404 × 2,124; 575 KB
  
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  Heredity and evolution in plants (1920) (14763301402).jpg 1,544 × 2,472; 583 KB
  
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  Heredity and evolution in plants (1920) (14783456553).jpg 2,224 × 1,650; 710 KB
  
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  Heredity and evolution in plants (1920) (14783521253).jpg 2,512 × 1,700; 530 KB
  
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  Jean-Henri Fabre - La vida de los insectos (page 1 crop).jpg 457 × 291; 19 KB
  
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  Jean-Henri Fabre - La vida de los insectos (page 30 crop).jpg 1,679 × 1,074; 409 KB
  
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  Jean-Henri Fabre - La vida de los insectos (page 35 crop).jpg 515 × 683; 84 KB
  
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  Jean-Henri Fabre - La vida de los insectos (page 37 crop).jpg 1,071 × 1,602; 417 KB
  
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  Jean-Henri Fabre - La vida de los insectos (page 52 crop).jpg 503 × 501; 83 KB
  
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  Jean-Henri Fabre - La vida de los insectos (page 55 crop).jpg 1,078 × 1,599; 443 KB
  
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  Jean-Henri Fabre - La vida de los insectos (page 62 crop).jpg 502 × 596; 72 KB
  
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  Jean-Henri Fabre - La vida de los insectos (page 63 crop).jpg 579 × 928; 90 KB
  
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  Jean-Henri Fabre - La vida de los insectos (page 7 crop).jpg 141 × 109; 4 KB
  
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  Jean-Henri Fabre - La vida de los insectos (page 86 crop).jpg 506 × 507; 78 KB
  
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  Jean-Henri Fabre - La vida de los insectos (page 87 crop).jpg 532 × 546; 74 KB
  
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  Jean-Henri Fabre - La vida de los insectos (page 88 crop).jpg 491 × 558; 77 KB
  
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  Jean-Henri Fabre - La vida de los insectos (page 89 crop).jpg 1,091 × 1,607; 462 KB
  
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  Mammals Five diagrammatic longitudinal sections through the maturing germ and its egg-membranes.jpg 1,270 × 1,902; 678 KB
  
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  Mammals The separation of the discoidal germ from the yolk-sac, seen in section.jpg 1,151 × 811; 590 KB
  
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  On boneformation, its relation to tension and pressure; (1920) (14765537361).jpg 1,306 × 3,144; 833 KB
  
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  Plate IV. Diagrammatic transverse sections of different embryos.jpg 1,071 × 1,648; 1.32 MB
  
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  Plate V. Diagrammatic longitudinal sections of different embryos.jpg 1,389 × 2,174; 1.62 MB
  
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  Principles of veterinary science; a text-book for use in agricultural schools (1920) (20724964382).jpg 850 × 1,434; 240 KB
  
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  Rabbit Gastrula of a Mammal.jpg 840 × 771; 412 KB
  
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  Studies on marine ostracods - pt. 1, Cypridinids, halocyprids and polycopids (1920) (14597823028).jpg 2,496 × 3,135; 334 KB
  
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  Studies on marine ostracods - pt. 1, Cypridinids, halocyprids and polycopids (1920) (14761440286).jpg 1,880 × 1,642; 167 KB
  
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  Textbook of pastoral and agricultural botany, for the study of the injurious and useful plants of country and farm (1920) (14597432620).jpg 1,758 × 620; 195 KB
  
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  Textbook of pastoral and agricultural botany, for the study of the injurious and useful plants of country and farm (1920) (14597466668).jpg 1,122 × 1,800; 246 KB
  
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  Textbook of pastoral and agricultural botany, for the study of the injurious and useful plants of country and farm (1920) (14597482348).jpg 1,256 × 1,260; 216 KB
  
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  Textbook of pastoral and agricultural botany, for the study of the injurious and useful plants of country and farm (1920) (14597577487).jpg 1,750 × 1,038; 226 KB
  
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  Textbook of pastoral and agricultural botany, for the study of the injurious and useful plants of country and farm (1920) (14761149106).jpg 926 × 1,652; 182 KB
  
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  Textbook of pastoral and agricultural botany, for the study of the injurious and useful plants of country and farm (1920) (14784088555).jpg 858 × 1,212; 128 KB
  
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  Textbook of pastoral and agricultural botany, for the study of the injurious and useful plants of country and farm (1920) (14803961413).jpg 1,596 × 776; 179 KB
  
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  Textbook of pastoral and agricultural botany, for the study of the injurious and useful plants of country and farm (1920) (14803990703).jpg 1,672 × 1,272; 226 KB
  
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  The Biochemical journal (1920) (19748495144).jpg 1,718 × 2,948; 559 KB
  
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  The Biochemical journal (1920) (19748541934).jpg 2,028 × 2,816; 615 KB
  
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  The Biochemical journal (1920) (20344920106).jpg 1,740 × 3,154; 563 KB
  
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  The Biochemical journal, 1918 (1920) (19748334774).jpg 1,570 × 2,884; 378 KB
  
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  The Biochemical journal, 1918 (1920) (20371062335).jpg 1,624 × 2,804; 342 KB
  
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  The Biochemical journal, 1918 (1920) (20377192921).jpg 2,028 × 2,996; 686 KB
  
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  The Biochemical journal, 1918 (1920) (20377194781).jpg 1,660 × 2,834; 402 KB
  
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  The Crinoidea flexibilia (with an atlas of A.B.C. and 76 plates) (1920) (20088832284).jpg 2,016 × 2,876; 925 KB
  
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  The Crinoidea flexibilia (with an atlas of A.B.C. and 76 plates) (1920) (20090492773).jpg 1,210 × 2,808; 639 KB
  
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  The Crinoidea flexibilia (with an atlas of A.B.C. and 76 plates) (1920) (20090813423).jpg 2,012 × 2,826; 1.15 MB
  
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  The Crinoidea flexibilia (with an atlas of A.B.C. and 76 plates) (1920) (20090979023).jpg 1,970 × 2,802; 1.01 MB
  
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  The Crinoidea flexibilia (with an atlas of A.B.C. and 76 plates) (1920) (20091025603).jpg 2,010 × 2,862; 945 KB
  
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  The Crinoidea flexibilia (with an atlas of A.B.C. and 76 plates) (1920) (20523543038).jpg 1,978 × 2,896; 988 KB
  
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  The Crinoidea flexibilia (with an atlas of A.B.C. and 76 plates) (1920) (20711345915).jpg 2,082 × 2,834; 1.02 MB
  
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  The Crinoidea flexibilia (with an atlas of A.B.C. and 76 plates) (1920) (20718874521).jpg 2,006 × 2,838; 1.13 MB
  
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  The Entomologist's record and journal of variation (1920) (14781920344).jpg 1,988 × 3,366; 774 KB
  
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  The evolution of man (1920) plate III.jpg 753 × 1,173; 1.21 MB
  
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  The evolution of man- a popular exposition of the principal points of human ontogeny and phylogeny (1920) (14760848311).jpg 909 × 1,445; 1.87 MB
  
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  Vertebrates Transverse sections through the germshield of a higher Vertebrate, showing the origin of the tubular from the bent germ-layerrudimentary.jpg 1,515 × 689; 663 KB
  
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  What bird is that? A pocket museum of the land birds of the eastern United States, arranged according to season (1920) (14568972738).jpg 1,312 × 2,048; 435 KB