tion: by Wilton Everett Britton. Part II. The Euplexoptera and 

 Orthoptera of Connecticut: by Benjamin Hovey Walden. 



17. Fourth Biennial Report of the Commissioners of the State 

 Geological and Natural History Survey, 1909-10. 



18. Triassic Fishes of Connecticut: by Charles Rochester 

 Eastman. 



19. Echinoderms of Connecticut : by Wesley Roscoe Coe. 



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 Hymen- 

 optera, 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. 



23. Central Connecticut in the Geologic Past: by Joseph 

 Barren. 



24. Triassic Life of the Connecticut Valley: by Richard 

 Svi^ann Lull. 



25. Sixth Biennial Report of the Commissioners of the State 

 Geological and Natural History Survey, 1913-1914. 



26. The Arthrostraca of Connecticut: by Beverly Waugh 

 Kunkel. 



2y. Seventh Biennial Report of the Commissioners of the State 

 Geological and Natural History Survey, 1915-1916. 



28. Eighth Biennial Report of the Commissioners of the State 

 Geological and Natural History vSurvey, 1917-1918. 



29. The Quaternary Geology of the New Haven Region, 

 Connecticut: by Freeman Ward, Ph.D. 



30. Drainage, Modification and Glaciation in the Danbury 

 Region, Connecticut : by Ruth Sawyer Harvey, Ph.D. 



31. Check List of the Insects of Connecticut: by Wilton 

 Everett Britton, Ph.D. 



32. Ninth Biennial Report of the Commissioners of the State 

 Geological and Natural History Survey, 19 19- 1920. 



33. Geology of the Stonington Region, Connecticut : by Laura 

 Hatch, Ph.D. (In press.) 



34. Guide to the Insects of Connecticut: prepared under the 

 direction of Wilton Everett Britton, Ph.D. Part IV. The 

 Hemiptera or Sucking Insects of Connecticut : by Wilton Everett 

 Britton, Ph.D., with the collaboration of James Francis Abbott, 

 Arthur Challen Baker, Harry Gardner Barber, William Thompson 

 Davis, Dwight Moore Delong, William Delbert Funkhouser, Harry 

 Hazleton Knight, Asa Chandler Maxson, Herbert Osborn, Howard 

 Madison Parshley, Edith Marion Patch, Louis Agassiz Stearns, 

 Jose RoUin de la Torre-Bueno, Edward Payson Van Duzee, 

 Harley Frost Wilson. 



