In August, 1891, the barometer was carried by Professor McClure to the summit of Diamond Peak; in August, 1894, by the writer, to the summit of the middle peak of the Three Sisters, in Oregon, giving an altitude of 10,080 feet, not hitherto published; in July, 1895, Professor McClure took it with the Mazamas to Mount Adams, and in July, 1897, to the summit of Mount Rainier.
A new tube was filled and inserted about two years ago, Professor McClure preparing the mercury by distillation and the writer boiling it in the tube. The vacuum was exceptionally perfect. The comparison sheet previously mentioned showed that the instrument on the occasion of its last trip read .005 inch above standard.
In thus completing the labors of Professor McClure, with whom I was so long and so intimately associated, I feel a very melancholy satisfaction. For his sake, I have spared no pains in collecting all the useful data that could be obtained, to make the result reliable to the last degree possible in such a case. I leave that result as a sufficient guarantee of the accuracy of the whole work from beginning to end.
Professor Henry Landes.
XIII. FIELD NOTES ON MOUNT RAINIER, 1905
By PROFESSOR HENRY LANDES
Henry Landes is Professor of Geology and Dean of the College of Science, University of Washington, and he has also served as State Geologist of Washington, since 1895. He was born at Carroll, Indiana, on December 22, 1867. He graduated from the University of Indiana in 1892 and obtained the Master of Arts degree at Harvard University in 1893. He was assistant to the State Geologist of New Jersey and Principal of the High School at Rockland, Maine, before being elected to his present professorship at the University of Washington in 1895. For a year and a half, 1914-1915, he was Acting President of the University of Washington.
He has published many articles and pamphlets on geological subjects. The one here given appeared in Mazama, published in December, 1905, by the Mazamas in Portland, Oregon. It is reproduced here with the permission of the author and of the mountaineering club.