| Teoh_Scientific Laboratory supplies such as beakers, cylinders, petri dishes, weigh boats, test tubes, burets, latex gloves, stoppers and micro slides. |
| Thomas_Scientific Worldwide supplier of scientific laboratory equipment and supplies |
| Total_Lab_Systems_Ltd Distributor of general lab equipment. |
| Townson_Mercer Manufacturer of aboratory supplies, including vacuum ovens, incubators, water, ultrasonic baths, lab fridges and freezers. |
| TQ_Education_and_Training A supplier of technical equipment, educational services and project management to schools, colleges, universities and training centers . |
| Tri-Esssciences A current price list of scientific and laboratory equipment and supplies |
| Open_Problems Collected by Jeff Erickson. Mainly in geometry. |
| Open_Problems_from_the_Geometry_Junkyard Compiled by David Eppstein of the University of California at Irvine. |
| Open_Problems_on_Discrete_and_Computational_Geometry Compiled by Jorge Urrutia, University of Ottawa. |
| The_Open_Problems_Project A project to record open problems of interest to researchers in computational geometry and related fields. |
| Steiner_Trees Open Problems with Steiner Trees, maintained by Joe Ganley. |
| Abotex_Enterprises_Ltd_ Provides facts about lead poisoning and reducing lead intake. Offers lead test kit - Lead Inspector. |
| Analytico Provide tests for environmental hazards with chemical analyses of water, soil or air. Testing for 200 compounds with results returned in 5 days. |
| Argus_Group A family of companies providing comprehensive safety, industrial hygiene and environmental monitoring products and services. |
| Asia-Tech_Industry_Co_ Manufacturer of ozone generating equipment for health and environment based in Thailand. Provides information about products using ozone technology for water and air purification. [English, Thai] |
| Baubiology_Priggen German company offers services, instruments and goods for the consequences of environmental conditions like sick building syndrome and environmental illness. |
| Byatec_Containers On line sales of anthrax test kit. |
| DATAS_Associates_Ltd_ Specialize in providing training and services for professional pest control registration and training, food hygiene registration, asbestos and risk assessment management systems. |
| Enviromed__Allergy,_Immunology_and_Environmental_Medicine Provide care for the environmentally sensitive and for environmental illness. Dorothy Calabrese MD, Laguna, California. |
| EnviroMetric_Laboratories Provides information related to environmental hazards and testing for radon, lead paint, underground storage tanks, asbestos and drinking water contaminants. Inspection services for real estate. |
| Global_Encasement_Inc_ Coatings for the abatement of lead based paint and asbestos, an alternative to removal. |
| HIS_Environmental_Services Offers environmental test kits for lead, radon, mold and asbestos. Provides description of services and order information. |
| Home_Environmental Informational articles on home environment issues. Products for allergy relief, water purification, lead and radon testing. |
| Home_Safe Information about lead testing, lead-based paint, childhood lead poisoning, risk assessments, and related compliance and worker safety issues. Provide home test kits for lead, asbestos, mold and milde |
| Lead_Test Offers lead paint testing as well as home inspection services for lead. Sells products to remediate lead based paints. |
| Ozone_Tech_Systems_OTS_AB Developer and producer of high concentration ozone generators for air and water purification. Description of applications and products. |
| PRO-LAB,_Inc_ Offers environmental test kits for radon gas, carbon monoxide, lead, asbestos, mold, pesticides, and poor water quality. Provides description of services and order information. |
| Restoration_Environmental_Contractors,_Ltd_ Building and facility decontamination contractors based in Ontario. Site has information on environmental hazards and their abatement, including asbestos, lead, mold and fungus, MTBE, and urea formald |
| RGF_Environmental Manufacturer of over 500 environmental products. Designs, manufactures and distributes environmental systems that provide pure air, water and food. |
| Royal_Pest_Management Services featuring a unique termite bait system by Sentricon which eliminates the termite colony. An environmental choice over older liquid treatment methods. |
| Total_Indoor_Environmental_Site Allergy free products for home and office. Air cleaners, mattress encasings, chemical free cleaners, all natural odor control, water purification. |
| Toxicology_Online Information for businesses, and services for the toxicology, pesticide, and environment industry. |
| UV_Systems_PLC British manufacturer of ultraviolet disinfection equipment for applications including water treatment and disinfection of air and surfaces. |
| Wilco_Incorporated Home inspection company specializing in lead inspection, risk assessment, project design, abatement supervision and licensing in residential and commercial structures. Wilco uses Niton XRF analyzers f |
| Class_Scaphopoda Information about biology of the tusk shells, with illustrations and links. |
| The_Scaphopod_Page Information and resources pertaining to research on scaphopods and other molluscan taxa. |
| Scaphopoda Links to tusk shell sites from the Man and Mollusc website. |
| Arché The Arche project looks at the foundations of mathematics, especially at Frege's Theorem and its ramifications. Based at the University of St Andrews. |
| A_Century_of_Controversy_over_the_Foundations_of_Mathematics Edited transcript of a lecture by Gregory Chaitin, author of `The Unknowable'. |
| FOM A closed, moderated, e-mail list for discussing Foundations of Mathematics moderated by Martin Davis. Archive available. |
