
Spermine phosphate crystals prepared by Alexander von Poehl
1898
1898
1912
1876
1876
1772-1804
1828-31
1973-1993
1975
1974
1970
2014
1850-1876
1876
1972-1973
1876
1870
1970-1985
1800-1818
1870
1869
1800-1818
1876
1876
1876
1876
1876
1876
1876
1876
1876
1870-1876
1965
1800-1818
1870
1876
1876
1876
1876
1876
1876
1910-1912