632 REPORT ON NATIONAL MUSEUM, 1886. 



Marble. White. 3£ by 3£ by £ inches. Mino Province. Centennial, 1876. 27137. 



Pink, black, and white, brecciated. 3| by 3$ by £ inches. Mino Province. Cen- 



tennial, 1876. 27138. 



Black, with white fossils. 3$ by 3£ by £ inches. Mino Province. Centennial, 



1876. 27139. 



Black and white; breccia. 3| by 3| by £ inches. Mino Province. Centen- 



nial, 1876. 27140. 



Dark gray, black spotted. 3f by 3£ by | inches. Mino Province. Centen- 



nial, 1876. 27141. 



White, green veined. 6£ by 6£ by 1 inches. Hitachi. Centennial, 1876. 27536. 



White ; crystalline. 6£ by 6$ by 1 inches. Hitachi. Centennial, 1876. 27538. 



White, with blae-gray veins; resembles the Italian bardiglio. 6 by 6 by 1 



inches. Two specimens. Hitachi. Centennial, 1876. 27539. 



White, green veined. 6 by 6 by 1 inches. Hitachi. Centennial, 1876. 27542. 



White, green veined. 6 by 6 by 1 inches. Hitachi. Centennial, 1876. 27541. 



White, green veined. 6£ by 6£ by 1 inches. Hitachi. Centennial, 1876. 27543. 



White, with blae-gray veins ; resembles the Italian bardiglio. Two speci- 



mens. 6 by 6 by 1 inches. Hitachi. Centennial, 1876. 27544. 



White, green veined. 6 by 6 by 1 inches. Hitachi. Centennial, 1876. 27545. 



White ; crystalline. 6£ by 6J by 1 inches. Hitachi. Centennial, 1876. 27546. 



White; crystalline. 6£ by 6£ by 1 inches. Hitachi. Centennial, 1876. 27547. 



White, green veined. 6 J by 6 J by 1 inches. Hitachi. Centennial, 1876. 27558. 



White; crystalline. 6| by 6^ by 1 inches. Hitachi. Centennial, 1876. 27548. 



White; crystalline. 6£ by 6£ by 1 inches. Hitachi. Centennial, 1876. 27549. 



RUSSIA. 



Quartz porphyry. Dnll red base, with large porphyritic feldspars and quartzes. 2£ 

 by 2\ inches. Isle Hoghland. Russian Centennial Commission, 1876. 27582. 



A compact purplish base, carrying porphyritic yellowish and reddish feldspars. 



3 by 4 inches. Nishue-Issetsk Works, district of Katharinenburg, Ural. 

 Russian Centennial Commission, 1876. 27565. 



(Porphyry.) A compact purplish rock, with very many white porphyritic 



feldspars and glassy quartz. 4 by 5 inches. Isle Hoghland. Russian Cen- 

 tennial Commission, 1876. 27580. 



(Porphyry.) Red base, with large reddish feldspars and glassy quartzes. 2\ 



by 3 inches. Isle Hoghland. Russian Centennial Commission, 1876. 27581. 



(Keratitic porphyry.) Very fine and compact; nearly black, with small 



porphyritic feldspars and quartzes, arranged in nearly parallel indistinct 

 bands. 3£ by 4 inches. Lake Narori, district of Katharinenburg, Ural. 

 Russian Centennial Commission, 1876. 27568. 



(Keratitic porphyry.) Dark gray, nearly black, with abundant porphyritic 



whitish feldspars and quartzes. Irregular fragment, 2 by 3 inches. River 

 Tchervenka, district of Katharinenburg, Ural. Russian Centennial Com- 

 mission, 1876. 27566. 

 Porphyry conglomerate. (Keratitic porphyry.) A greenish-black conglomerate, 

 composed of felsitic (?) fragments very closely compacted by a siliceous paste. 

 3 by 4 inches. Redoubt Kolpatsk, district of Katharinenburg, Ural. Russian 

 Centennial Commission, 1876. 27567. 

 Porphyry breccia. (Keratitic porphyry.) A red, compact breccia, composed of 

 porphyry particles. 4 by 4 inches. Redoubt Kolpatsk, district of Katharinen- 

 burg, Ural. Russian Centennial Commission, 1876. 27570. 



