sentences:  Boultbee's ear for language was acute, and he compiled an extensive vocabulary of Māori expressions.His portraits of the chiefs Te Whakataupuka of Ruapuke and the dying Te Wera of Bluff, among others, are a valuable addition to our knowledge.If wanderlust had not kept him on the move, he might have accepted Te Whakataupuka's invitation to remain on Ruapuke.