2George B. Kauffman. ElemenTree: A 3-D Periodic Table. By Fernando Dufour available in two versions: 1. A transparent Vivak plastic periodic tree in pink, green, and black, 10-1/2 in. high, 8 in. at widest near base, US $31.00. 2. A black-and-white Mini-ElemenTree, which fits into the pocket of a 3-ring loose-leaf binder, US $18.00. Both kits include a 24-page instruction manual. Prices do not include shipping and handling or sales tax. Order as Catalog No. M2-84-0124 from Carolina Biological Supply Co., 2700 York Road, Burlington, NC 27215, Telephone: (800) 334-5551; FAX: (800) 222-7112; e-mail: dthomas@carolina.com or fcherry@carolina.com. http://www.carolina.com[J] 1999,The Chemical Educator(3):121～122
