Natural evidence for chemical and early biological evolution

Natural fission reactors in the Franceville basin, Gabon: A review of the conditions and results of a "critical event" in a geologic system

Natural fluorinated organics in fluorite and rocks

Natural gas association with water and oil as depicted by atmospheric noble gases: case studies from the southeastern Mediterranean Coastal Plain

Natural generation and amplification of magnetic seed fields

Natural hydraulic cracking: numerical model and sensitivity study

Natural Internal Forcing Schemata Extending ZFC

Natural iodine-129 as an environmental tracer

Natural lead isotope variations in the atmosphere

Natural Number Arithmetic in the Theory of Finite Sets

Natural radioactive elements as geochemical indicators of the character of Venusian rocks

Natural seesaw mechanism, eV-keV-MeV-type neutrino spectrum, and cosmology

Natural Selection

Natural source of tetraalkyllead in air

Natural thermoluminescence of Antarctic meteorites and related studies

Natural Variations in Comet-Aggregate Meteoroid Compositions

Natural variations in uranium isotope ratios of uranium ore concentrates: Understanding the 238U/235U fractionation mechanism

Natural zinc enrichment in peatlands: Biogeochemistry of ZnS formation

Naturality and Definability II

Naturally weathered feldspar surfaces in the Navajo Sandstone aquifer, Black Mesa, Arizona: Electron microscopic characterization