46 Report of the President 



stalagmite and an abundance of other material from the walls 

 of a cave opened in the course of ordinary operations in the 

 Copper Queen Mine, Bisbee, Arizona, during the past summer. 

 The material was collected under the direction of the Curator 

 for the purpose of constructing a cave in the Hall of Geology, 

 and has been presented to the Museum by the Copper Queen 

 Consolidated Mining Company. Other important acquisitions 

 are the Knowles meteorite, a mass of nickel iron 18 inches long 

 and 14 inches high, weighing 355 pounds, from Knowles, 

 Oklahoma, a unique mass found in 1903; a 218-pound mass of 

 the siderolite form of the Brenham meteorite, being the second 

 largest mass of this phase known, and a beautiful slice of 

 El Inca, Peru, an iron meteorite showing excellent Widman- 

 statten figures. 



The Curator spent about a month in the field in Arizona 

 for the purpose of making studies for the preparation of the 

 Copper Queen Mine model, which is to be the gift of Dr. James 

 Douglas. He took with him a map maker, a photographer 

 and a preparator, who spent several weeks gathering the data 

 needed for the construction of the model, in addition to those 

 furnished by the engineering and geological staff of the Copper 

 Queen Consolidated Mining Company. 



Some important changes have been made in the arrangement 

 of the material in care of this department. The Ward-Coonley 

 collection of meteorites (which is on loan at the Museum) has 

 been removed from the Hall of Geology and placed in the 

 corridor next west of the foyer. The general Museum collection 

 of meteorites has been transferred from the Department of 

 Mineralogy to this department and has been installed in six 

 metal-framed cases in the foyer. In addition to this we have 

 installed the new Knowles meteorite, the newly acquired mass 

 of the Brenham meteorite and the El Inca meteorite in the 

 foyer. The specimen of El Inca is a polished slab showing the 

 entire section of the meteorite, and it has been mounted in its 

 proper position in a bisected model of the entire mass, forming 

 a noteworthy addition to the series. These changes in instal- 

 lation have brought together in two contiguous rooms the best 

 series of meteorites in this country and one of the best in the 

 world. 



