1868.1 235 [Morse. 



The Orthopteran families may then be placed in the following de- 

 scending order: Gryllldes, Locustariae, Acrydii, Phasmida, Mantides, 

 Blattarite, Forficulariae. 



This order, if we omit the Forficulariae and assume that Burmeister 

 proceeded fi-om the lower to the higher groups in his treatment of 

 insects, is exactly the position assigned to them by that distinguished 

 German entomologist. 



January 6, 1869. 

 The President in the chaii*. Thirty-four members present. 



Professor Carl Wedl of Vienna, Mr. John Cassin of Phil- 

 adelphia, Hon, Lewis H. Morgan of Rochester, N. Y., and 

 Dr. Burt G. Wilder of Ithaca, N. Y., were elected Corres- 

 ponding Members. 



The following gentlemen were elected Resident Members : 

 Mr. Frederic Amory of Brookline, Mr. James W. Lovering 

 of Cambridge, Mr. Charles F. Gerry of Hyde Park, Drs. 

 Gustavus Hay, William W. Howard, Arthur H. Nichols, 

 George L. Underwood and George F. Waters, and Messrs. 

 H. J. Burton, Jr., James Chadwick, Benjamin F. Dwight, 

 Augustus Hemmenway, George B. Knapp, Stephen C. 

 Martin, Ernest Papendiek, Frank H. Thomas and Solon 

 Thornton of Boston. 



The following paper was read : — 



On the Land-slides in the Vicinity of Portland, Maine. 

 By Edward S. Mokse. 



The occurrence of another land-slide in the vicinity of Portland, 

 renders this area of considerable interest to the geologist, since this 

 is the third slide that has happened in this region within the space of 

 thirty-seven years. While studying the nature and causes of the 

 recent slide, I became interested in the evidences of prehistoric land- 

 slides, which have modified considerably the surface features of that 

 district. 



