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PART 1 
THE 
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RE^tlLTS OF ASilTSEraC THEATMEOT OF 
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' Recpi^: c| t^ts on Treated Sleepers 
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By 
^EARSON, CXE, I JS. 
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'CS;\ :-SUFB»INi’ltNDEira €K>yB'tCKlfEKj PMA'XIKG. IKOIA 
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ARNOLD ARBORtliM* 
'■ WfAlGAfLAlN,: 
'Mass. 
