Note 89 — Chapter XXIX · SIDELIGHTS ON AUDUBON AND HIS CONTEMPORARIES

Swainson expounded the Quinarian or Circular System in the Fauna Boreali-Americana; or the zoölogy of the northern parts of British America, published in collaboration with John Richardson, and the first zoölogical publication issued by the British Government; but A Treatise on the Geography and Classification of Animals contained his most authoritative thesis upon this grotesque concept.