408 REPORT OF NATIONAL MUSEUM, 1889. 



vious year, in a very satisfactory manner by Mr. W. B. Merrimon. 

 Work was begun early in the fall of 1888 with a view to preparing one 

 hundred sets of rocks, of fifty specimens each, to meet the numerous de- 

 mands from educational institutions, and it was hoped that the entire 

 series might be made ready for distribution before the close of the year. 

 That it is not as yet ready, is due in a large degree to the lack- of satis- 

 factory storage space, though there are also lacking certain materials 

 that are essential to the completion of the series. It is hoped that we 

 may be able to obtain these during the coming summer. A rc-assign- 

 inent of storage space, it should be noted, has necessitated once more 

 a moving of the entire collection of duplicates and unassorted materials. 

 Twenty-three sets of duplicates, mostly in the way of exchanges, were 

 sent out during the year. They are as follows : 



July 11. — To Dr. Stephen Bowers, Ventura, California, two specimens of serpentine 

 from Montville, New Jersey. 



July 30.— To Dr. H. S. Lucas, Cullasaja, North Carolina, two specimens of serpen- 

 tine from Montville, New Jersey. 



August 3. — To Mr. W. H. Schreiber, Webster, North Carolina, one specimen of 

 chrome iron ore. 



October 4. — To Prof. W. O. Crosby, Boston, Massachusetts, 100 pounds dunite and 

 pyroxenite, from Webster, North Carolina. 



October 5. — To O. C. Farrington, New Haveu, Connecticut, two specimens serpen- 

 tine from Montville, New Jersey. 



October 15. — To M. A. Lacroix, Paris, France, five specimens of American rocks. 



November 8. — B. Sturtz, of Bonn, Prussia, forty-three specimens of miscellaneous 

 rocks from the United States. 



November 27. — To M. Meunier, Museum of Natural History, Paris, France, a series 

 of one hundred and one specimens, many of them cut and comprising a variety of 

 building and ornamental stones and eruptive and sedimentary rocks. 



December 6. — To Prof. O. A. Derby, Rio Janeiro, Brazil, a series of one hundred 

 and thirty-one specimens American rocks, mainly eruptive 



December 8. — To Prof. E. Haworth. Pent) College, Oskaloosa, Iowa, a series of 

 seventy-two specimens miscellaneous rocks, mainly eruptive. 



December 12. — To Prof. C. C. Nutting, Iowa City, Iowa, a series comprising 

 twenty-six specimens cut and polished marbles. 



February 8, 1889.— To the Maine State College, Orono, Maine (Prof. F. L. Harvey), 

 a series of sixty-one specimens rocks, ores, and minerals from various sources. 



February 25. — To the U. S. Geological Survey (loaned for study), six specimens 

 obsidian, from various sources. 



March 14. — Transferred to department of animal products, four specimens rock, 

 composed mainly of organic remains. 



April 8. — To Dr. A. Brezina, Imperial Royal Museum at Vienna, Austria, a series 

 comprising one hundred and sixteen dressed specimens building and ornamental 

 stones in sizes about 4 by 4 by ^-inck, and also one hundred and two specimens mis- 

 cellaneous rocks, ores, aud minerals in sizes about 4 by 4 by 1 inch. 



May 4. — To Dr. George H. Williams, Johns Hopkins University, Baltimore, Mary- 

 land, eleven specimens miscellaneous rocks. 



May 4. — To Prof. C. H. Hitchcock, Dartmouth College, Hanover, New Hampshire, 

 sixteen specimens miscellaneous rocks. 



May 23. — To Prof. W. S. Bayley, Colby University, Waterville, Maine, six speci- 

 mens miscellaneous rocks. 



