54 REPORT OF NATIONAL MUSEUM, 1889. 



Minerals. — The Imperial Roy. Natural History Museum, Vienna, 

 sent in exchange three meteorites, through Dr. Aristides Brezina. 

 Sixty-two specimens of miscellaneous minerals and forty-three speci- 

 mens of miscellaneous rocks were sent to B. Sturtz, Bonn, Prussia, in 

 exchange for rocks. 



Geology. — An interesting and valuable series of meteorites and erup- 

 tive rocks of Brazil, comprising two hundred and sixty-nine specimens, 

 was received from Prof. O. A. Derby, of Bio de Janeiro, in exchange 

 for a series of rocks. A collection comprising about one hundred and 

 eighty specimens of modern and antique marbles from Europe and 

 Africa was received in exchange from the Museum of Natural History at 

 Paris. A series consisting of one hundred aud sixteen dressed speci- 

 mens of building and ornamental stones and one hundred and two 

 specimens of rocks, ores, and minerals, was sent to Dr. Aristides Brezina 

 of the Imperial Royal Museum at Vieuna, Austria, and a collection of 

 one hundred aud seventeen specimens of building stones was received 

 in exchange. A series of one hundred and one specimens of building 

 stones, many of them cut and polished, and a collection of eruptive 

 and sedimentary rocks was sent to M. Meuuier, of the Museum of 

 Natural History, Paris, France. The National Museum of Brazil, at 

 Rio de Janeiro, through Prof. O. A. Derby, sent a collection of Brazilian 

 rocks and a meteorite, and one hundred and thirty-one specimens of 

 American rocks sent in exchange. Rocks and minerals were sent to 

 R. N. Worth, Plymouth, England, in exchange for serpentine rock. 

 Five specimens of American rocks were sent to M. A. Lacroix, Paris, 

 France. 



A collection comprising sixty -four specimens of typical rocks aud 

 ores was sent to Rev. G. E. Post, Beirut, Syria. 



PUBLICATIONS. 



The publications of the National Museum consist of four series : 



(1) The Annual Report, submitted to the Secretary of the Smith- 

 sonian Institution, and by him transmitted to Congress as a part of 

 the report of the Board of Regents of the Smithsonian Institution. 



From 1850 to 1866 and from 1881 to 1883 the series was printed as an 

 appendix to the report of the Secretary. 



From 1867 to 1S73 no report was published, except in passing refer- 

 ence in the Secretary's report on the Administrative work of the year. 



From 1874 to 1877 the report of the Assistant Secretary on the Mu- 

 seum was quoted in the Secretary's report, and from 1878 to 1880 it was 

 incorporated in the report of tbe Secretary. 



Since 1881 the report on the Museum has been printed as a separate 

 volume, constituting Part II of the report of the Smithsonian Institu- 

 tion, and the fifth volume of this series— that for 1887-'88— is now being 

 printed. In the appendix of this report are printed each year certain 



