THORIANITE  , a rare See also:

• MINERAL

mineral, discovered by W . D . See also:

• HOLLAND
• HOLLAND, CHARLES (1733–1769)
• HOLLAND, COUNTY AND PROVINCE OF
• HOLLAND, HENRY FOX, 1ST BARON (1705–1774)
• HOLLAND, HENRY RICH, 1ST EARL OF (1S9o-,649)
• HOLLAND, HENRY RICHARD VASSALL FOX, 3RD
• HOLLAND, JOSIAH GILBERT (1819-1881)
• HOLLAND, PHILEMON (1552-1637)
• HOLLAND, RICHARD, or RICHARD DE HOLANDE (fl. 1450)
• HOLLAND, SIR HENRY, BART

Holland, and found in the See also:

• GEM (Lat. gemma, a bud,—from the root gen, meaning " to produce,"—or precious stone; in the latter sense the Greek term is > d>os)
• GEM, ARTIFICIAL

gem-gravels of See also:

• CEYLON

Ceylon, where it occurs as small, heavy, See also:

• BLACK
• BLACK, ADAM (1784-1874)
• BLACK, JEREMIAH SULLIVAN (1810–1883)
• BLACK, WILLIAM (1841-1898)

black, cubic crystals, usually much See also:

• WATER

water-worn . It was so named by W . R . See also:

• DUNSTAN, SAINT (924 or 925-g88)

Dunstan, on See also:

• ACCOUNT
• ACCOUNT (through O. Fr. acont, Late Lat. comptum, cornputare, to calculate)

account of its high percent-See also:

• AGE (Fr. age, through late Lat. aetaticum, from aetas)

age of See also:

• THORIUM (symbol Th, atomic weight ,232.42 [0=16])

thorium (about 70% ThO2); it also contains the oxides of See also:

• URANIUM [symbol U, atomic weight 238.5 (0=16)]

uranium, lanthanum, See also:

• CERIUM (symbol Ce, atomic weight 140.25)

cerium and See also:

• DIDYMIUM (from the Gr. &Segos, twin)

didymium . See also:

• HELIUM (from Gr. i)Xcor, the sun)

Helium is See also:

• PRESENT

present, and the mineral is slightly less radio-active than See also:

• PITCHBLENDE, or URANINITE

pitchblende . It has been examined for new elements . See also:

• MISS

Miss See also:

• EVANS, CHRISTMAS (1766-1838)
• EVANS, EVAN HERBER (1836-1896)
• EVANS, OLIVER (1755–1819)
• EVANS, SIR GEORGE DE LACY (1787–1870)
• EVANS, SIR JOHN (1823-1908)

Evans (Journ . Chem . See also:

• SOC

Soc., 1908, 93, p . 666) obtained what is possibly a new See also:

• ELEMENT (Lat. elementum)

element, whilst M .

Ogawa (Journ . See also:

• COLL

Coll . Sci . See also:

• TOKYO (or TOKIO, formerly called Yedo)

Tokyo, 1908, vol . 25) found indications of three new See also:

• SPECIES

species: one which he called nipponium, with an See also:

• EQUIVALENT

equivalent See also:

• WEIGHT

weight of about 5o and atomic weight too; the second with an equivalent of about 16.7; whilst the third yielded a radio-active See also:

• OXIDE

oxide .