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- Middle Colonies (4101 bytes)
5: ...wberries, and cherries. Since water was sometimes impure, all members of the family drank [[milk]] and [[w... - History of the United States (1865-1918) (52094 bytes)
176: ...chant articles dealing with trusts, high finance, impure foods and abusive railroad practices began to app... - Aristotle (37648 bytes)
10: ... gained through the senses is always confused and impure, true knowledge being acquired by the contemplati... - Pope Gelasius I (4083 bytes)
10: ...well as bread. As the Manichaeans held wine to be impure and essentially sinful, they would refuse the cha... - List of minerals (11610 bytes)
365: #[[Phosphorite]] (name given to impure, massive apatite.)
366: #[[Uraninite|Pitchblende]] (a massive impure form of uraninite) - Barium (8466 bytes)
146: *Impure [[barium sulfide]] [[phosphorescence|phosphoresce... - Cadmium (10755 bytes)
186: ...in this zinc compound. Strohmeyer noted that some impure samples of calamine changed color when heated but... - Cerium (12377 bytes)
228: ...c materials. While cerium is not radioactive, the impure commercial grade may contain traces of thorium, w... - Laboratory (5761 bytes)
8: ...ile reagents are first [[autoclave]]d before use. Impure, and non sterile reagents interfere with experime... - Aluminium (26079 bytes)
86: ...oduced for the first time two years earlier in an impure form by the Danish physicist and chemist [[Hans C... - Mercury (element) (24761 bytes)
208: ...as required for the [[transmutation]] of base (or impure) metals into gold. This was a primary goal of alc... - Molybdenum (10247 bytes)
178: ...e]]. In [[1782]] [[Hjelm]] was able to isolate an impure extract of the metal by reducing the oxide with c... - Phosphorus (11557 bytes)
70: ...rock, which is partially made of [[apatite]] (an impure tri-[[calcium]] phosphate [[mineral]]) is an impo... - Silicon (13233 bytes)
63: ...Louis Jacques Th鮡rd|Th鮡rd]] probably prepared impure amorphous silicon through the heating of [[potass... - Tantalum (11817 bytes)
181: ...ds. Early investigators were only able to isolate impure metal and the first relatively pure ductile metal... - Technetium (32113 bytes)
218: ... to have been discovered but was determined to be impure [[niobium]]. This mistake was repeated in [[1847]... - Tungsten (13647 bytes)
166: ...is very pure (it is brittle and hard to work when impure) and is otherwise worked by forging, drawing, or ... - Vanadium (13808 bytes)
124: ...ctly declared that del Rio's new element was only impure [[chromium]]. Del Rio thought himself to be mista... - Yttrium (9384 bytes)
160: ...solated by [[Friedrich Wohler]] in [[1828]] as an impure extract of [[yttria]] through the reduction of yt... - Zinc (12445 bytes)
185: Smelting and extraction of impure forms of zinc was being accomplished as early as ...
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