The side rows of holes only are used for transmitting the message, the centre row being required for feeding forward the paper in the transmitter.
9) by holes 7), 0 in the ends of the box, which fit the cylinder closely and smoothly.
The chairs on the British system weigh about 45 or 50 lb each on important lines, though they may be less where the traffic is light, and are fixed to the sleepers each by two, three or four fastenings, either screw spikes, or round drift bolts entered in holes previously bored, or fang bolts or wooden trenails.
Deep holes in the ground, rimmed with black, pockmarked the shallow valley.
The mine's like a thousand other holes in the ground—it's outlived its time.