@misc{indiciae7b292e77b5a2,
  title = {Forty-fifth annual report of the Director of the United States Geological Survey},
  author = {George Otis Smith},
  year = {1924},
  doi = {10.3133/ar45},
  url = {https://pubs.usgs.gov/publication/ar45},
  note = {Source identifier: ar45}
}