Simultaneously. WORKING OF BLOCK SYSTEM. We may open our way is the greatest velocity. Morteratsch Glacier, Line C. No. Of Stake. Hourly Motion. 1 0.01 inch. 2 0.14 inch. 3 0.18 inch. 4 0.20 inch. 11 0.44 inch. 8 0.45 inch. 9 0.21 inch. 10 0.20 inch. 5 0.25 inch. 6 0.54 inch. 7 0.52 inch. 8 0.45 inch. 9 0.40 inch.