nom ▁Pen h ▁and ▁took ▁photograph s ▁of ▁the ▁King ▁of ▁Camb odia ▁and ▁other ▁members ▁of ▁the ▁Camb od ian ▁Royal ▁Family , ▁before ▁trav elling ▁on ▁to ▁Sa ig on . ▁From ▁there ▁he ▁stayed ▁in ▁Bang k ok ▁briefly , ▁before ▁returning ▁to ▁Britain ▁in ▁May ▁or ▁June ▁in ▁ 1 8 6 6 . ▁While ▁back ▁home , ▁Thom son ▁lect ured ▁extens ively ▁to ▁the ▁British ▁Association ▁and ▁published ▁his ▁photograph s ▁of ▁S iam ▁and ▁Camb odia . ▁He ▁became ▁a ▁member ▁of ▁the ▁Royal ▁Eth n ological ▁Society ▁of ▁London ▁and ▁was ▁elected ▁a ▁Fellow ▁of ▁the ▁Royal ▁Ge ographical ▁Society ▁in ▁ 1 8 6 6 , ▁and ▁published ▁his ▁first ▁book , ▁The ▁Anti qu ities ▁of ▁Camb odia , ▁in ▁early ▁ 1 8 6 7 . ▁ ▁Tra vel s ▁in ▁China ▁ ▁After ▁a ▁year ▁in ▁Britain , ▁Thom son ▁again ▁felt ▁the ▁desire ▁to ▁return ▁to ▁the ▁Far ▁East . ▁He ▁returned ▁to ▁Singapore ▁in ▁July ▁ 1 8 6 7 , ▁before ▁moving ▁to ▁Sa ig on ▁for ▁three ▁months ▁and ▁finally ▁sett ling ▁in ▁Hong ▁Kong ▁in ▁ 1 8 6 8 . ▁He ▁established ▁a ▁studio ▁in ▁the ▁Com mer cial ▁Bank ▁building , ▁and ▁spent ▁the ▁next ▁four ▁years ▁photograph ing ▁the ▁people ▁of ▁China ▁and ▁recording ▁the ▁divers ity ▁of ▁Chinese ▁culture . ▁ ▁Thom son ▁tra ve led ▁extens ively ▁throughout ▁China , ▁from ▁the ▁southern ▁trad ing ▁ports ▁of ▁Hong ▁Kong ▁and ▁C