Show Buildings Can Be M Made de Entirely ely Termite Proof The coming coining o of age 21 age 21 years years- of the first t termite t test st building erected in the tropical rain forest of Barro Colorado island Is reported by the U U. S S. S department of agri agri- culture The building is sound and free from termite utta attack o on this island in the Panama Canal Zone which Is noted as a termite heaven en cn en inhabited as s It is by at t least 45 different kinds of termites which have been Identified by federal entomologists en en- This building was erected in by the American Wood Preservers' Preservers association It Is one of 01 several that are being inspected periodically by bythe bythe lh the bureau au of entomology and plant This oldest termite test house demonstrates the effective effectiveness ness of tar coal creosote and zinc chloride in protecting wooden buildings build ings ng against termites The noted woods were sound after 21 years in the Jungle A cot of ot untreated untreated un treated wood left in the thc house was wai riddled d by termites that built their tubes across the surface of the treated woods to reach the cot o Another building of timber treated treat treat- ed with zinc has endured endured en en- dured more than 15 years of or existence existence existence exist exist- ence on Barro Barra Colorado without damage A third house however erected in 1931 treated with an ineffective in ineffective in in- effective chemical h has s been damaged damaged dam dam- aged severely 41 V |