Concerning evolution (1925) (20651282676)

Title: Concerning evolution
Identifier: concerningevolut00thom (find matches)
Year: 1925 (1920s)
Authors: Thomson, J. Arthur (John Arthur), 1861-1933; Dwight Harrington Terry Foundation
Subjects: Evolution
Publisher: New Haven, Yale University Press; (etc. , etc. )
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library



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SUGGESTION OF A GENEALOGICAL TREE OF ANIMALS 1: A plant, indicating that the roots of this animal genealogical tree are con- nected with those of a corresponding plant genealogical tree. 2: Foraminifer, with threads of living matter. 3: Another Rhizopod Protozoon. 4: A parasitic Sporozoon. 5: Noctiluca, a luminescent Infusorian. 6: The Bell-Animalcule. 2-6 are unicellular animals,—Protozoa. 7: Crumb-of-Bread Sponge. 8: Sea-Anemone. 9: Jellyfish. 10: Leech. 11: A ringed worm or Annelid. 12: A Brittle-Star (Echino- derm). 13: Lobster. 14: Butterfly. 15: Scorpion. 13-15: Arthropods. 16: Snail. 17: Squid. 18: Balanoglossus, pointing on to Vertebrates. 19: A Tunicate or Ascidian. 20: Lancelet or Amphioxus. 21: Fish. 22: Toad. 23: Chamaeleon (a Lizard). 24: Snake (another reptile). 25: Swift. 26: Rook. 27: Bat. 28: Squirrel.