Jan., 1908. Annual Report of the Director. 139 



ores; one case ores of the Appalachians; three cases ores from Mex- 

 ico; four cases ores from Colombia; one case ores from other South 

 American localities; one case ores of Australia; two cases ores of 

 Great Britain; and three cases of European ores. The platinum 

 ores, the metallurgical collections, and the large specimens occupy- 

 ing centre and special wall cases, have not been essentially changed. 

 One case, transferred from Hall 67, has been added to those of the hall, 

 and a number of the cases have been repainted. Of the relief maps, 

 Halls 76 and 77, thirteen additional ones have been encased in glass, 

 making twenty-eight in all which are now thus protected. One 

 map has been repainted and several retouched. A series of photo- 

 graphic enlargements, twenty in number, 17 by 20 inches in size, 

 illustrating typical geological or geographical features, has also been 

 mounted upon a swinging stand in Hall 76. Including these, a total 

 of sixty-seven relief maps, seven ordinary maps, and twenty-five 

 framed photographs is at present exhibited in these halls, making 

 an exhibit which, besides attracting the attention of visitors in general, 

 is used extensively for detailed study by classes from the public 

 schools and other institutions. The collections in Hall 78 have been 

 somewhat rearranged, and completely labeled. At present they 

 number as follows : Three cases of abrasives, two cases of phosphates, 

 two cases of mica, two cases of asbestos, one case of sulphur, one 

 case of gypsum, one case of borax, four cases of salts of the alkalies 

 and alkaline earths, two cases of processes and two miscellaneous 

 cases. For the present, only temporary cases, collected from various 

 sources, are available for exhibiting these collections, but it is hoped 

 shortly to replace them with more attractive ones. To the Depart- 

 mental office and library, as already noted, several of the wall cases 

 formerly in use in Hall 66 were transferred. These cases, with some 

 alterations, have been made to serve as book cases. The additional 

 space thus provided has been filled by the transference of a considerable 

 number of books of a geological nature from the general library stack 

 room, thus relieving the pressure on the latter. About 230 lineal feet 

 of shelving, all under glass, have thus been added to the Departmental 

 library during the year, and the total amount of shelving now available 

 for books in this library is 650 lineal feet. A total of 4,500 books and 

 pamphlets is at present kept in this library. The works are chiefiy 

 serials, reports of Government and State surveys obtained by exchange, 

 the private library donated by Director Skiff, and a series of separates 

 and mineralogical books purchased from Mr. Kunz. Provision 



