248 KEPORT OF NATIONAL MUSEUM, 1890. 



On Ace. 768: Material for assay; received from C. E. Stewart, RocKwood, Tennes- 

 see. 



On Ace. 770: Concretions; received from M. J. Becker, Fort Scott, Kansas. 



On Ace. 773 : Material for analysis ; received from J. McDonald, Big Bug, Arizona. 



On Ace. 775 : Supposed tin ore ; received from Sloan & Ferguson, Bozeman, Mon- 

 tana. 



On Ace. 777: Biotite granite; received from S. & J. Adams, Bangor, Maine. 



On Ace. 780 : Supposed iron ore ; received from Dr. A. M. Bourland, Van Buren, 

 Arkansas. 



On Ace. 23,272: Chalcopyrite, shell limestone and lava; received from U. S. 

 Eclipse Expedition to Africa; collected by H. Brown. 



On Ace. 786 : Material for assay ; received from James Gillespie, San Bernardino, 

 California. 



On Ace. 787 : Concretion; received from J. L. Carter, Kingston, Alabama. 



On Ace. 789 : Material for assay; received from John Park, Red Bluff, Montana. 



On Ace. 791: Calcareous sandstone; received from R. A. Mills, Chulusta, Orange 

 County, Florida. 



The general character of the strictly Museum work, so far as it re- 

 lates to the preparation and arrangement of materials for the exhibition 

 and study series, may be best understood by reference to the prelimi- 

 nary handbook of the department, as it appeared in appendix of the 

 Museum report for the year ending June 30, 1889. 



It may, however, be said here that the present force of the depart- 

 ment is far too small for systematic work. The time is passed in the con- 

 tinual struggle to keep up with the routine, and the amount of actual 

 progress, as displayed by permanent results, is discouragingly small. 

 Up to March 15, 1890, I was assisted by Messrs. W. H. Newhall and 

 W. B. Merrimon. The latter having on March 15 resigned to go into 

 the Census Office, the eutire work of the department has since been 

 carried on by Mr. Newhall and myself, assisted from time to time by 

 a Museum laborer. 



Comparatively little has been done in the way of sending out mate- 

 rial for exchange during the year. The following list includes all the 

 items of importance coming under this head : 



October 26, 1889. — To George H. Barton, Boston Society of Natural History, Boston, 

 Massachusetts, 41 specimens miscellaneous rocks. 



November 8, 1889. — To Dr. A. Brezina, Vienna, Austria, 41 specimens miscellaneous 

 rocks. 



December 17, 1889. — To Father Orbon, of the New Catholic University, Washington, 

 District of Columbia, 30 specimens, type series of rocks. 



February 19, 1890. — To U. S. Geological Survey, city, 9 specimens oolitic rocks. 



March 22, 1890. — To Hon. G. G. Vest, 5 specimens of ores. 



March 5, 1890.— To Prof. W. S. Bayley, Colby University, Waterville, Maine, 13 

 specimens of eruptive rocks. 



April 4, 1890. — To Prof. Ernest van der Broeck, Brussels, Belgium, 16 specimens 

 oolitic rocks. 



May 16, 1890.— To Prof. J. J. Stevenson, University of the City of New York, 15 

 specimens of ores. 



June 2, 1890. — To Dr. Moor, Sioux Falls, Dakota, 6 samples infusorial earth. 



June 20, 1890. — To Prof. C. R. Van Hise, Madison, Wisconsin, 121 specimens rocks 

 collected by the Fortieth Parallel Survey. (Lent for study.) 



