Show an riipi cant discovery G german erman investigation proves that acid solution swill will convert common sawdust into a material firm farm m in texture anu anti so go extremely hard bard as to be impenetrable by either a if acil ail or a gimlet it is also alao more impervious to the action of the elements than any other known material used for building burp purposes oses concrete natural stone and ordinary building metals not excepted besides the above excellent qualities which of COUI SO will male make it rank high in in the estimation of contractors and builders it t has another point that will make it w worthy 0 arthy of praise when finally adopted that of being practically fireproof specimens of boards made from it having havin been subjected to an extraordinary degree of heat for upward of achour an hour without warping or changing chan its texture in the least it is claimed for it that it will bo be stronger sti than wood for juista joists and gird ers era and above e ail that it can be manufactured at such a slight cos coatas A to bring it into competition with the more common building strita st loma republic |