Letter from Donald McLean, Land Commissioner, to the Honble, the Colonial Secretary, dated 12th. August 1850. reporting completion of boundary line of Rangitikei purchase. Whanganui 12th. August 1850. Sir, I have the honor to acquaint you, for the information of His Excellency, the Lieut. Governor, that the Interior boundary line extending from the South bank of the Whanganui to the Whangaehu river, was commenced on the 24th. ulto., and satisfactorily completed on the 10th. inst. At the request of the Chiefs who accompanied Mr. Park and myself