@misc{indiciae636b07068631,
  title = {The genetic and endocrinic basis for differences in form and behavior : as elucidated by studies of contrasted pure-line dog breeds and their hybrids — Illustration, Page 239},
  year = {1941},
  url = {https://www.biodiversitylibrary.org/page/5864478},
  note = {Source identifier: page-5864478}
}