The tug arrives with a wild gallop, off the cock, this motion is the greatest velocity. Morteratsch Glacier, Line C. No. Of Stake. Hourly Motion. 1 0.01 inch. 2 0.49 inch. 3 0.24 inch. 4 0.32 inch. 5 0-41 inch. 6 0.54 inch. 5 0-41 inch. 6 0.54 inch. 7 0.27 inch. 8 0.49 inch. 9 0.40 inch. 10 0.20 inch. 5.