52 PHYSICAL GEOGRAPHY. 



fully important areas. They are the White Mountain area, the Ammo- 

 noosuc gold field (including the Lyman map district), and the towns 

 adjacent to Hanover. Third, a special collection of minerals; fourth, of 

 fossils ; fifth, of all economic materials, particularly the granites of New 

 Hampshire, and the marbles and slates of Vermont ; sixth, a special set to 

 illustrate the distribution of boulders ; seventh, numerous topographical 

 models. 



The college collections embrace, first, most of our birds, collected and 

 presented by Prof. Henry Fairbanks, of St. Johnsbury, Vt; second, one 

 thousand species of New Hampshire insects, collected by C. P. Whitney, 

 of Milford, and presented by Mr. Fairbanks ; third, a few mammals, by 

 the same ; fourth, miscellaneous New Hampshire fish and reptiles ; fifth, 

 the plants of the White Mountains, collected by the survey, and the local 

 flora of Hanover, the latter gathered and presented to Dartmouth college 

 by Miss Mary Hitchcock, of Hanover. 



The state house collection ought to be equally comprehensive ; but at 

 present there are no rooms suitable for its accommodation. 



The Mt. Washington Expedition. 



The chief part of the report for 1870 is occupied by a sketch of the 

 Mt. Washington expedition. The meteorological tables are given in full ; 

 and, side by side with them, observations from several other localities, 

 taken at the same hours, for purposes of comparison. Mr. S. A. Nelson 

 furnishes an admirable sketch of the meteorology of Mt. Washington, 

 following the tables. His great skill in generalizing from facts will cause 

 great regret that he was unable to prepare for this volume a sketch of the 

 meteorology of the state. 



Mr. Huntington's Labors. 



We have been greatly favored, through most of our labors, by the per- 

 severance of Mr. J. H. Huntington, principal assistant. He has entered 

 thoroughly into the spirit of the work, and has fully identified himself 

 with our explorations. Though having a special field of his own, he has 

 always been ready to labor elsewhere whenever assistance was required. 

 The following is a general outline of his work since the last mention of 



