National Geographic : 1893 Feb 08
180 T. C. Mendenhall-The Alaskan Boundary Survey. tion and topography as would be necessary for the identification of the locations of the observing camps, and to establish perma nent monuments as nearly as may be upon the meridian line. These two parties, one to occupy a camp on the Yukon river as nearly as possible where it is intersected by the 141st meridian and the other on the Porcupine, were directed respectively by Mr McGrath and Mr Turner, whose observations are summarized in the following papers. It was estimated that one year would be sufficient for the ac complishment of the work, and this estimate was a liberal one, provided ordinary weather conditions had prevailed in that part of the country. It was found, however, that these conditions were extremely unfavorable, especially for astronomical work, on account of the continued cloudiness, rendering observations for a long time absolutely impossible. The extreme low tempera ture also rendered work difficult, and this of itself would have stood in the way of an early completion of the task had it been possible to carry on the astronomical observations. It thus hap pened that, notwithstanding the rigor of the climate and the diffi culty, if not impossibility, of obtaining supplies from outside sources, these parties were obliged to remain in the interior of Alaska during two years. Notwithstanding the unfavorable con ditions under which they existed during this time, every indi vidual of both parties returned in good health and in good con dition. Indeed, there was scarcely a case of even ordinary illness during the entire campaign, a fact which must reflect great credit upon those charged with the management of the parties. So far as we have been able to ascertain by recollections and comparisons made up to this date, the work with which Messrs McGrath and Turner were charged has been done in a manner entirely satisfactory and so as to reflect great credit upon these gentlemen. I am sure they have very much to tell you which is of interest in relation to theii experiences in this almost unknown and unexplored region, and I will not longer stand in the way of their doing so.
1893 Feb 20
1892 May 15