20. The Birds of Connecticut: by John Hall Sage and Louis Bennett
Bishop, assisted by Walter Parks Bliss.
21. Fifth Biennial Report of the Commissioners of the State Geological
and Natural History Survey, 1911-1912.
22. Guide to the Insects of Connecticut: prepared under the direction
of Wilton Everett Britton. Part III. The Hymenoptera, or Wasp-like
Insects, of Connecticut: by Henry Lorenz Viereck, with the
collaboration of Alexander Dyer MacGillivray, Charles Thomas Brues,
William Morton Wheeler, and Sievert Allen Rohwer.