His Majesty's Government having determined upon sending an Expedition from the Shores of Hudson's Bay by land to explore the Northern Coast of America from the Mouth of the Copper-Mine River to the eastward, I had the honour to be appointed to this service by Earl Bathurst, on the recommendation of the Lords Commissioners of the Admiralty; who at the same time nominated Doctor John Richardson, a Surgeon in the Royal Navy, Mr. George Back, and Mr. Robert Hood, two Admiralty Midshipmen, to be joined with me in the enterprise. My instructions in substance informed me that the main object of the Expedition was that of determining the latitudes and longitudes of the Northern Coast of North America, and the trending of that Coast from the Mouth of the Copper-Mine River to the eastern extremity of that Continent; that it was left for me to determine according to circumstances whether it might be most advisable to proceed at once directly to the northward till I arrived at the sea-coast, and thence westerly towards the Copper-Mine River; or advance in the first instance by the usual route to the mouth of the Copper-Mine River, and from thence easterly till I should arrive at the eastern extremity of that Continent; that in the adoption of either of these plans I was to be guided by the advice and information which I should receive from the wintering servants of the Hudson's Bay Company, who would be instructed by their employers to cooperate cordially in the prosecution of the objects of the Expedition, and who would provide me with the necessary escort of Indians to act as guides, interpreters, game-killers, etc.; and also with such articles of clothing, ammunition, snowshoes, presents, etc., as should be deemed expedient for me to take. That as another principal object of the Expedition was to amend the very defective geography of the northern part of North America I was to be very careful to ascertain correctly the latitude and longitude of every remarkable spot upon our route, and of all the bays, harbours, rivers, headlands, etc., that might occur along the Northern Shore of North America. That in proceeding along the coast I should erect conspicuous marks at places where ships might enter, or to which a boat could be sent; and to deposit information as to the nature of the coast for the use of Lieutenant Parry. That in the journal of our route I should register the temperature of the air at least three times in every twenty-four hours; together with the state of the wind and weather and any other meteorological phenomena. That I should not neglect any opportunity of observing and noting down the dip and variation of the magnetic needle, and the intensity of the magnetic force; and should take particular notice whether any, and what kind or degree of, influence the Aurora Borealis might appear to exert on the magnetic needle; and to notice whether that phenomenon were attended with any noise; and to make any other observations that might be likely to tend to the further development of its cause and the laws by which it is governed.