The Museum as it stands To-day 83 



these three series are still in print. Publications are furnished gratis 

 to all members except Associates. A complete price list of the So- 

 ciety's publications is published every few years. 



Publications are exchanged with about four hundred and fifty for- 

 eign institutions and with some two hundred domestic institutions. 



*&* 



The Department of Minerals and Geology 



THE exhibitions in this department are grouped under two 

 main divisions: Minerals and Rocks. 

 The first division is subdivided into four parts : 



(1) A systematic collection containing all the minerals found in 

 New England arranged according to their composition. 



(2) A synoptic collection illustrating the principal minerals of 

 the world, also arranged according to composition. These two sub- 

 divisions occupy one whole room. 



(3) A collection illustrating the minerals from the three most 

 famous localities in New England and the local minerals found in 

 the Metropolitan Boston district. 



(4) A Gem Collection illustrating the little-appreciated semi- 

 precious stones of New England and other gems. 



The second division, that of Rocks, is made up of: 



(1) A Petrographic collection, illustrating the various rocks of 

 which New England is made. 



(2) A structural and dynamic Geological series illustrating the 

 way these rocks occur and came into their present condition. 



(3) An economic collection showing the various building stones, 

 ores, and other products of the ground useful to man. 



In addition to the exhibits a large study collection of minerals 

 and rocks is maintained. Practically all are from New England. 

 This is so arranged that any specimen is instantly available for study 



