| USGS_Minerals_Information__Tungsten Statistics and information on the worldwide supply, demand, and flow of the element (PDF format). |
| Visual_Elements__Tungsten Image, general and physical information, source, uses, key isotopes, and ionisation energies. |
| WebElements__Tungsten Extensive information on history, uses, occurrence, compounds, and properties. |
| Wikipedia__Tungsten Properties of the element, including its history, applications, and characteristics. |
| Radiochemistry_of_Tungsten Full text of the monograph by G. W. Leddicotte (Oak Ridge National Laboratory, Oak Ridge, Tennessee). [PDF] (September, 1961) |
| Berkelium Data tables and historic information. |
| Britannica_Nobel_Prizes__Berkelium Overview and basic data. |
| ChemicalElements_com__Berkelium Basic information, atomic structure, and isotopes. |
| The_Columbia_Encyclopedia__Berkelium Overview for the general reader. |
| EnvironmentalChemistry_com__Berkelium Atomic structure, chemical and physical properties, and table of nuclides. |
| It\'s_Elemental__Berkelium Basic physical and historical information. |
| LANL__Berkelium Basic information and history. |
| Lenntech__Berkelium Physical data, chemical properties, and health effects. |
| Visual_Elements__Berkelium General and physical information, and key isotopes. |
| WebElements__Berkelium Extensive information on history, compounds, and properties. |
| Binturong Photograph and brief article by the Carnivore Preservation Trust. |
| Binturong_(Arctictis_binturong) Brief article provides facts on physical characteristics, distribution, and behavior. |
| Binturong_(Arctictis_binturong) Fact sheet with photo and range map. From Lioncrusher's Domain. |
| Binturong_Information_Sheet Detailed article about Arctictis binturong, or Asian Bearcat, by Mindy Stinner. |
| Binturongs Photos and facts about this species. |
| Fossaworld_com Introduction to the species, its wild habitat and lifestyles, and captive welfare. Includes photo gallery and links to research papers. |
| My_Binturong_Friends All about binturongs, or bearcats, from the tropics of southeast Asia. Pictures and information by Galen Berry. |
| European_Association_for_Population_Studies EAPS is an international and multidisciplinary forum for the study of Europe's population. |
| European_Society_for_Population_Economics_(ESPE) Links to conference, teaching of population economics, and summerschools. |
| Finnish_Demographic_Society_/_Suomen_Väestötieteen_Yhdistys_ry Information on the activities and publications (both in Finnish and English). |
| International_Union_for_the_Scientific_Study_in_Population Promotes scientific studies of demography and population-related issues. An international professional association for individuals interested in population studies. |
| ChemicalElements_com__Tin Basic information, atomic structure, and isotopes table. |
| EnvironmentalChemistry_com__Tin Atomic structure, chemical and physical properties, and table of nuclides. |
| It\'s_Elemental__Tin Basic physical and historical information. |
| LANL__Tin Sources, properties, forms, and handling. |
| Lenntech__Tin Physical data, chemical properties, health and environmental effects. |
| Tin Data tables and historic information. |
| USGS_Minerals_Information__Tin Statistics and information on the worldwide supply, demand, and flow of the element (PDF format). |
| Visual_Elements__Tin Image, general and physical information, source, uses, key isotopes, and ionisation energies. |
| WebElements__Tin Extensive information on history, uses, occurrence, compounds, and properties. |
| Wikipedia__Tin Properties of the element, including its history, applications, and characteristics. |
| Radiochemistry_of_Tin Full text of the monograph by W. E. Nervik (Lawrence Radiation Laboratory, University of California, Livermore, California). [PDF] (October 10, 1960) |
| NetSci__Software_Listing_for_Crystallography List of crystallography software. |
| publCIF Free software to edit and preview a CIF for publication. Windows, Linux and MacOS platforms. |
| ChemicalElements_com__Ruthenium Basic information, atomic structure, and table of isotopes. |