idi ary ▁Gla x o ▁Labor ator ies . ▁Gla x o ▁was ▁flo ated ▁on ▁the ▁London ▁Stock ▁Exchange ▁the ▁following ▁month . ▁ ▁Gla x o ▁became ▁the ▁core ▁of ▁one ▁of ▁the ▁world ' s ▁largest ▁ph arma ce ut ical ▁companies ▁Gla x o Smith K line ▁( GS K ). ▁Its ▁global ▁headquarters ▁are ▁now ▁four ▁miles ▁south ▁of ▁Green ford ▁at ▁Br ent ford . ▁ ▁Ret irement ▁Joseph ▁Nathan ' s ▁wife ▁died ▁in ▁ 1 8 9 3 ▁and ▁he ▁died ▁on ▁ 2 ▁May ▁ 1 9 1 2 . ▁They ▁were ▁surv ived ▁by ▁their ▁four ▁daughters ▁and ▁eight ▁sons . ▁The ▁sons ▁were ▁involved ▁in ▁the ▁management ▁of ▁the ▁various ▁business es ▁run ▁from ▁Pal mer ston ▁North , ▁Well ington ▁and ▁London . ▁ ▁References ▁▁▁ ▁Category : 1 8 3 5 ▁birth s ▁Category : 1 9 1 2 ▁death s ▁Category : 1 9 th - century ▁New ▁Zealand ▁business people ▁Category : English ▁em igr ants ▁to ▁New ▁Zealand ▁Category : New ▁Zealand ▁Jews ▁Category : English ▁Jews <0x0A> </s> ▁Pro si ph o ▁can cell atus ▁is ▁a ▁species ▁of ▁sea ▁sn ail , ▁a ▁marine ▁g ast rop od ▁m oll usk ▁in ▁the ▁family ▁Bu cc in idae , ▁the ▁true ▁wh el ks . ▁ ▁Description ▁ ▁Distribution ▁ ▁References ▁ ▁External ▁links ▁ ▁Category : Bu cc in idae ▁Category : G ast rop ods ▁described ▁in ▁ 1 9 1 5 <0x0A>