China Scientific Book Services - Books on biology, ecology, environment, zoology, botany, and insects. English and Chinese version. Coronet Books - Distributor of academic and scientific books. List of titles on-line. Based in Philadelphia, PA, USA. Editorial URSS Publishers - Russian scientific books in Russian, Spanish, and English languages. Currency is the Euro. Engineering Materials Advisory Services - Sandwich Construction publications to order online. Based in London, UK. CPL Press Online Bookshop - Offers scientific and technical publications including books and CD-ROMs. National Science Teachers Association - Offers books, CD-ROMs, and posters. Watered-Down Electricity - Information, text and graphics about electricity.