15. Red oxide of zinc. Sussex county, N. J.
16. Metalliferous limestone. Missouri.
17. Agate. Strawberry river, Arkansas Territory.
18. Dolomite. Stockbridge, Mass.
19. Lamellar galena. Bryan's mines, St. Genevieve county, Mo.
20. Shell-limestone. Bermuda.
21. Arseniate of cobalt, with nickel, in actynolite. Chatham, Conn.
22. Galena in quartz. Shangum Mountain, N. Y.
23. Regulus of antimony.
24. Granular argillaceous oxide of iron (pea ore). Staten Island, N. Y.