He was reassigned in 1835 to Portugal and Spain, “to ascertain how far the minds of the people were prepared to receive the truths of Christianity, ” as he later put it.
Talle anti 1835. aastal uus ülesanne minna Portugali ja Hispaaniasse, „et teha kindlaks, mil määral on sealsete inimeste meel valmis kristlikke tõdesid vastu võtma ”, nagu ta hiljem oma sinnasaatmise eesmärki ise sõnastas.