Corrected Draft. Letter to the Governor. Auckland, January 23, 1861. Sir, From information lately received from different sources, both European and Native, there is every reason to believe that the natives meditate an attack upon Auckland. They have erected strong pas in the forest country inland of Drury. They are using every effort to collect supplies of ammunition;and they are at present busily engaged in securing their crops, and placing them in those fortresses. In one pa recently finished they have several tons of flour, and it appears that they have a large supply of powder obtained by the aid of foreigners concealed in a place which is not easily accessible, and to which they themselves only resort at night. It is evident from all that can be gathered that preparations are being made for an impending struggle. An attack upon Auckland is fully contemplated; the road by which they are to come is spoken of; but the exact time at which this is to take place has not transpired - further than that it should be immediately after they receive intelligence of W. Kingis defeat in his stronghold. Great efforts are being made by the Waikatos to induce the natives to rise en masse throughout the Island. Several tribes are in favor of a simultaneous insurrection; others have not entertained the project; while some are wavering. Upon the whole it is evident that some of the powerful tribes are preparing for a general struggle to maintain their nationality and independence; and it is probable that immediately after their wheat is harvested they will select the weakest and least defensible points for carrying their designs into effect. They have spies in Auckland to keep them advised of the number of troops stationed here, and advantage is to be taken of a time when the force is reduced in numbers to make a night attack upon the Town. This points to the necessity of such precautionary measures being taken as Your Excellency may deem advisable; and explicidly that a sufficient garrison should be maintained at Auckland. I have, etc. Sd. Donald McLean, Native Secretary. To: His Excellency Col. T. G. Browne, C.B. Gov. of N. Z.