▁Bell ' s ▁mag num ▁op us , ▁" The ▁Com ing ▁of ▁the ▁Post - Ind ust rial ▁Society ", ▁Par s ons ▁wrote ▁a ▁letter ▁to ▁Bell , ▁dated ▁November ▁ 3 0 , ▁ 1 9 7 1 , ▁to ▁offer ▁his ▁criticism . ▁Among ▁his ▁many ▁critical ▁points , ▁Par s ons ▁str essed ▁especially ▁that ▁Bell ' s ▁discussion ▁of ▁technology ▁t ended ▁to ▁" separ ate ▁off ▁culture " ▁and ▁treat ▁the ▁two ▁categories ▁" as ▁what ▁I ▁would ▁call ▁culture ▁minus ▁the ▁cogn itive ▁component ." ▁ ▁Par s ons ' ▁interest ▁in ▁the ▁role ▁of ▁eth nic ity ▁and ▁religion ▁in ▁the ▁gen esis ▁of ▁social ▁solid ar ity ▁within ▁the ▁local ▁community ▁heavily ▁influenced ▁another ▁of ▁his ▁early ▁ 1 9 6 0 s ▁gradu ate ▁students , ▁Edward ▁La umann . ▁As ▁a ▁student , ▁La umann ▁was ▁interested ▁in ▁the ▁role ▁of ▁social ▁network ▁structure ▁in ▁sh aping ▁community - level ▁solid ar ity . ▁Com bin ing ▁Par s ons ' ▁interest ▁in ▁the ▁role ▁of ▁eth nic ity ▁in ▁sh aping ▁local ▁community ▁solid ar ity ▁with ▁W . ▁Lloyd ▁Warner ' s ▁struct ural ▁approach ▁to ▁social ▁class , ▁La umann ▁argued ▁that ▁eth nic ity , ▁religion , ▁and ▁perce ived ▁social ▁class ▁all ▁play ▁a ▁large ▁role ▁in ▁struct uring ▁community ▁social ▁networks . ▁La umann ' s ▁work ▁found ▁that ▁community ▁networks ▁are ▁highly ▁partition ed ▁along ▁lines ▁of ▁eth nic ity , ▁religion , ▁and