Session of Friday Afternoon, December 28

At 2 p. m. the Mineralogical Society held a joint session with the Geological Society in the Director's conference room, Interior Building. Dr. E. T. Wherry, President of the Mineralogical Society, presided, and during the afternoon papers of both mineralogical and geological interest were presented.

Session of Saturday Morning, December 29

At 9 a. m. a joint session of the Geological Society and Mineralogical Society was held in the auditorium of the Interior Building. Dr. David White, President of the Geological Society, presided, and papers were read which were of combined geological and mineralogical nature.

At 12 o'clock Dr. Edgar T. Wherry, of the Mineralogical Society, gave his presidential address entitled “The surface of a crystal.”

Session of Saturday Afternoon, December 29

The Mineralogical Society of America held its fourth annual meeting in the auditorium of the Interior Building, Washington, D. C., in conjunction . . .

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