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Two hundred and five points have been determined in altitude by means of 1,319 barometric observations, and seventeen by means of the theodolite and spirit level. One hundred and ninety-two observations have been made for determining the variation of the magnetic needle at three important points.
On February 14, after a march of eleven and a half miles, we reached 80° S. Unfortunately we did not succeed in getting any astronomical observation on this trip, as the theodolite we had brought with us went wrong, but later observations on several occasions gave 79° 59' S. Not so bad in fog. We had marked out the route up to this point with bamboo poles and flags at every 15 kilometres.
But just as we decided to lunch, Bowers' wonderful sharp eyes detected an old double lunch cairn, the theodolite telescope confirmed it, and our spirits rose accordingly. This afternoon we marched on and picked up another cairn; then on and camped only 2 1/2 miles from the depot. We cannot see it, but, given fine weather, we cannot miss it. We are, therefore, extraordinarily relieved.
On the Wednesday I received a short note from Holdsworth; he was going to stay on, and return with me on the following Sunday, and he wanted me to send him a certain list of books, his theodolite, and other surveying instruments, all of which could easily be conveyed down the line to Heathbridge. I went to his lodgings and picked out the books.
I know that Tejada has some things of Bass's now things that Bass left with him last November: a mess-kit, a lantern and a broken theodolite a whole saddle-box full of contraptions. I forgot to ask Tejada how Bass got the manuscript, and I wish I had done so now, for the finding of it might be a story itself.
By means of such perseverance, he succeeded in bringing various mathematical, philosophical, and astronomical instruments to perfection. The large theodolite for terrestrial measurements, and the equal altitude instrument for astronomy, will always be monuments of his fertile, penetrating, arduous, superior genius! "I am but a Gatherer and disposer of other men's stuff." Wotton. Mr.
"Move!" murmured the Captain, returning as it were to consciousness with a long deep sigh, "it don't move an inch." "What does not move?" said Lawrence, who had been assisting to adjust the theodolite, and came forward at the moment. "The ice, to be sure," answered the Captain. "I say, Professor, do 'ee mean to tell me that the whole of that there Mairdy-glass is movin'?"
By placing stakes in a row across the axis of a glacier, and observing their movement from day to day, or even from hour to hour if a good theodolite is used for the purpose, we note that the movement of the stream is fastest in the middle parts, as in the case of a river, and that it slows toward either shore, though it often happens, as in a stream of molten water, that the speediest part of the current is near one side.
No University, it seemed to me, could be more admirably, situated, and as I sauntered about it, charmed with its fine lawns and trees and beautiful lakes, and saw the students going and coming with their books, and occasionally practising with a theodolite in measuring distances, I thought that if I could only join them it would be the greatest joy of life.
"Then permit me to explain," said Harry suavely. "I have ascertained that, by placing the theodolite over that peg yonder," pointing to a newly driven peg some four hundred feet away to the left "I shall be able to get an uninterrupted view of the quebrada from top to bottom, and, by taking a series of vertical and horizontal angles from the top edge, can measure the contour of the two sides, at the point crossed by the survey line, with the nicest accuracy."
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