2^. Seventh Biennial Report of the Commissioners of the 

 State Geological and Natural History Survey, 1915-1916; 17 pp., 

 23 cm., 1917. 



28. Eighth Biennial Report of the Commissioners of the State 

 Geological and Natural History Survey, 1917-1918; 21 pp., 23 

 cm., 1919. 



29. The Quaternary Geology of the New Haven Region. 

 Connecticut : by Freeman Ward, Ph.D. ; 80 pp., 9 pis., 17 figs., 

 23 cm., 1920. 



30. Drainage Modifications, and Glaciation in the Danbury 

 Region, Connecticut : by Ruth Sawyer Harvey, Ph.D. ; 59 pp., 

 5 pis., 10 figs., 23 cm., 1920. 



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

 Everett Britton, Ph.D. ; 397 pp., 23 cm., 1920. 



32. Ninth Biennial Report of the Commissioners of the State 

 Geological and Natural History Survey, 1919-1920; 18 pp., 23 

 cm., 1920. 



33. Geology of the Stonington Region, Connecticut : by 

 Laura Hatch Martin, Ph.D. ; 70 pp., i map, 8 figs., 23 cm., 1925. 



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., vi^ith the collaboration of James Francis Abbott, 

 Ph.D., Arthur Challen Baker, Ph.D., Harry Gardner Barber, 

 A.M., William Thompson Davis, Dwight Moore DeLong, Ph.D., 

 William Delbert Funkhouser, Ph.D., Harry Hazelton Knight, 

 Ph.D., Asa Chandler Maxson, Herbert Osborn, D.Sc, Howard 

 Madison Parshley, Sc.D., Edith Marion Patch, Ph.D., Louis 

 Agassiz Stearns, M.Sc, Jose Rollin de la Torre-Bueno, F.E.S., 

 Edward Payson Van Duzee, Harley Frost Wilson, M.S. ; 807 pp., 

 20 pis., 169 figs., 23 cm., 1923. 



35. Tenth and Eleventh Biennial Reports of the Commis- 

 sioners of the State Geological and Natural History Survey, 192 1- 

 1924; 17 pp., 23 cm., 1924. 



36. The Uredinales or Rusts of Connecticut and Other New 

 England States : by Willis Roberts Hunt, Ph.D. ; 198 pp., 2 figs., 

 23 cm., 1926. 



37. Catalogue of the Lichens of Connecticut: by Alexander 

 William Evans, Ph.D., and Rose Meyrowitz, M.S. ; 56 pp., 23 

 cm., 1926. 



38. Twelfth Biennial Report of the Commissioners of the State 

 Geological and Natural History Survey, 1925-1926; 23 pp., i pi., 

 2}^ cm., 1927. 



Bulletins i, 9, 12, 17, 21, 25, 27, 28, 32, 35 and 38 are merely 

 administrative reports containing no scientific matter. The other 

 bulletins may be classified as follows: 



Geology: Bulletins 4, 6, 7, 8, 13, 18, 23, 24, 29, 30, 33. 

 Botany: Bulletins 3, 5, 10, 11, 14, 15, 36, 37. 

 Zoology: Bulletins 2, 16, 19, 20, 22, 26, 31, 34. 



