ology ▁and ▁bot any ▁of ▁the ▁island ▁are ▁identical ▁with ▁those ▁of ▁the ▁main land . ▁Thus ▁for ▁almost ▁every ▁particular ▁and ▁fact , ▁whether ▁physical ▁or ▁historical , ▁I ▁have ▁been ▁to ▁a ▁great ▁extent ▁thrown ▁on ▁my ▁own ▁research es ; ▁and ▁obliged ▁to ▁seek ▁for ▁information ▁in ▁original ▁sources , ▁and ▁in ▁French ▁and ▁English ▁versions ▁of ▁Oriental ▁authorities . ▁The ▁results ▁of ▁my ▁investig ations ▁are ▁emb od ied ▁in ▁the ▁following ▁pages ; ▁and ▁it ▁only ▁remains ▁for ▁me ▁to ▁express , ▁in ▁terms ▁however ▁in ade qu ate , ▁my ▁oblig ations ▁to ▁the ▁literary ▁and ▁scientific ▁friends ▁by ▁whose ▁aid ▁I ▁have ▁been ▁enabled ▁to ▁purs ue ▁my ▁in qui ries ". ▁Coll abor ators ▁resident ▁in ▁C ey lon ▁include , ▁especially ▁the ▁B elf ast ▁born ▁natural ist ▁Robert ▁Temple ton ▁and ▁like ▁T enn ent ▁a ▁ ▁fellow ▁Member ▁of ▁the ▁B elf ast ▁Natural ▁History ▁Society ▁who ▁is ▁thank ed ▁thus ▁for ▁his ▁cord ial ▁assistance ▁in ▁numerous ▁depart ments ; ▁but ▁above ▁all ▁in ▁relation ▁to ▁the ▁physical ▁ge ography ▁and ▁natural ▁history ▁of ▁the ▁island . ▁Here ▁his ▁scientific ▁knowledge , ▁successfully ▁cultiv ated ▁during ▁a ▁residence ▁of ▁nearly ▁twelve ▁years ▁in ▁C ey lon , ▁and ▁his ▁int imate ▁familiar ity ▁with ▁its ▁zo ology ▁and ▁produ ctions , ▁rendered ▁his ▁co - operation ▁in valu able . ▁O thers ▁were ▁ ▁Dr . ▁Camer on , ▁of ▁the ▁Army ▁Medical ▁Staff ▁( as ▁was ▁Temple ton ), ▁Dr