tor Roy in some X-ray diffraction work on a new phosphate mineral 

 in the Springwater meteorite. The X-ray diffraction equipment in 

 the Chalmers Mineralogical Laboratory was used On several occa- 

 sions during the year to analyze and identify materials of the 

 Museum's Department of Anthropology, particularly for some 

 work on potsherds with Howard Anderson. 



In September Associate Curator Forslev went on a mineral- 

 collecting trip to various mining areas of the southwestern United 

 States, among which were the Bisbee, Arizona, copper deposits, the 

 borax deposits at Boron, California, and Death Valley, and the re- 

 cently discovered rare-earth deposits at Mountain Pass, California 

 (see page 36) . Excellent specimens for exhibition and material for 

 research were collected. One hundred and fifty insect-bearing con- 

 cretions of Miocene age, which were collected in the Mohave Des- 

 ert, were turned over to the Division of Paleontology. 



Bertram G. Woodland, Associate Curator of Petrology, made 

 complete analyses of the major constituents of two volcanic ashes, 

 one from Volcano Concepcion in Nicaragua and the other from 

 Volcano San Salvador. In collaboration with the Museum's De- 

 partment of Anthropology he made petrographic analysis of more 

 than a hundred thin-sections of potsherds collected during the 

 Museum's southwest archaeological expedition of 1958 and from 

 other areas, aided in identification of the material used in making 

 various artifacts, and investigated the nature of the continued 

 corrosion of metallic objects in the collections, making suggestions 

 for the treatment most likely to arrest the corrosion. In the field 

 of research, Woodland continued his petrographic work on a col- 

 lection of igneous and metamorphic rock from northeast Vermont 

 and collaborated with Chief Curator Roy on the microscopic exam- 

 ination of the silicate portion of the pallasite meteorite, Springwater. 



Dr. Sharat K. Roy, Chief Curator of Geology, devoted the 

 greater part of the year to duties connected with completing the 

 installation of twelve meteorite exhibits. On completion of the 

 exhibits, he made detailed petrographic examination of a new min- 

 eral in the pallasite Springwater meteorite. The mineral, a magne- 

 sium phosphate, which has not been previously reported from 

 natural sources, partially replaces and interdigitates with the iron 

 surrounding the olivine nodules. The mineral will be named Far- 

 ringtonite in honor of the former Curator of Geology, the late Dr. 

 Oliver Cummings Farrington, who devoted most of his academic 

 life to the study of meteorites. Chief Curator Roy also revised 

 and completed a paper on the Walters meteorite, a chondritic stone 

 that was found at Walters, Cotton County, Oklahoma. 



62 



