Inorganic phosphorous is a naturally occurring element in all plants and animals, with concentrations increasing progressively up the food chain (fruit

Inorganic phosphorous is a naturally occurring element in all plants and animals, with concentrations increasing progressively up the food chain (fruit < vegetables="">< cereals="">< nuts="">< corpse).="" geochemical="" surveys="" take="" soil="" samples="" to="" determine="" phosphorous="" content="" (in="" ppm,="" parts="" per="" million).="" a="" high="" phosphorous="" content="" may="" or="" may="" not="" indicate="" an="" ancient="" burial="" site,="" food="" storage="" site,="" or="" even="" a="" garbage="" dump.="" the="" hill="" of="" tara="" is="" a="" very="" important="" archaeological="" site="" in="" ireland.="" it="" is="" by="" legend="" the="" seat="" of="" ireland's="" ancient="" high="" kings†.="" independent="" random="" samples="" from="" two="" regions="" in="" tara="" gave="" the="" following="" phosphorous="" measurements="" (ppm).="" assume="" the="" population="" distributions="" of="" phosphorous="" are="" mound-shaped="" and="" symmetric="" for="" these="" two="">