Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Том 69American Philosophical Society, 1930 |
З цієї книги
Результати 1-3 із 35
Сторінка 90
... iron in feldspars , micas and hornblende is changed to iron bicarbonate or to ferroammonium compounds and is leached out as such by percolating water , as a result of which the clay - in - the - making is freed from all admixtures of iron ...
... iron in feldspars , micas and hornblende is changed to iron bicarbonate or to ferroammonium compounds and is leached out as such by percolating water , as a result of which the clay - in - the - making is freed from all admixtures of iron ...
Сторінка 228
... iron objects were of local manufacture , since deposits of iron slag and evidences of iron smelting have been found . It is uncertain as to the glass , but unfinished beads adhering to each other in series of half a dozen or more are ...
... iron objects were of local manufacture , since deposits of iron slag and evidences of iron smelting have been found . It is uncertain as to the glass , but unfinished beads adhering to each other in series of half a dozen or more are ...
Сторінка 228
... iron objects were of local manufacture , since deposits of iron slag and evidences of iron smelting have been found . It is uncertain as to the glass , but unfinished beads adhering to each other in series of half a dozen or more are ...
... iron objects were of local manufacture , since deposits of iron slag and evidences of iron smelting have been found . It is uncertain as to the glass , but unfinished beads adhering to each other in series of half a dozen or more are ...
Зміст
Why the 200Inch Teleschope By ELIHU THOMSON | 13 |
Antarctica BY ISAIAH BOWMAN | 19 |
Studies on Weathering and Soil Formation in Tropical High | 45 |
29 інших розділів не відображаються
Інші видання - Показати все
Загальні терміни та фрази
acid American Antarctic atoms Banahao basin Bearpaw beds Bighorn Bighorn Basin cell CERATOPSIA chemical climate colloid color Constitution Cretaceous crown view cusp deposits diameter dinosaurian dinosaurs dissymmetrical Ectypodus electrons Eocene fact fauna formation fossils Fox Hills genera genus Glacier County Glozel Gray Bull growth Holotype horizon humus incisor increase international law ions iron Java Kritosaurus Lance Lance formation land layer lower jaw luciferase luciferin M₁ material metaconid molar Mousterian organic matter Ornithomimus Ottonia oxide P₁ Paleocene Peperomia Piper Piperaceae plants Plate podsolization posterior precipitation present Princeton Probathyopsis Professor protoconid protoplasm reaction region ridge sandstone season Sebilian shale silica Society soil solution South species specimens stars STEGOSAURIA surface symmetrised temperature theory tion Titanoides tooth toxic equivalent Triceratops trigonid tropical trunk University upper weathering Wyoming