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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1914 Excerpt:...to contain 60.5 per cent, iron, 0.048 to 0.050 per cent, phosphorus, 5.25 per cent, silica, and 0.69 per cent, or less manganese, all based on dry weight. This corresponds to 55 per cent, iron and 0.45 per cent, phosphorus "natural"; that is, the ore as mined and containing its natural moisture, which may vary from 10 to 15 per cent. Making up Blocks.--Upon notification that a certain vessel is to arrive at the docks, the shipper prepares a sheet called a "block"; that is. a selection of cars at the yard which will make a certain grade or "group." He wires orders for the terminal yard to send down to the docks certain cars, picked out from the train loads as above specified, and conforming to the requirements of the group which is to be shipped. Figs. G and 7 are two blocks, graphically represented, one for the boat "Clemson," and one for the boat "Henry Phipps." Block 156 for the "Clemson" consists of a portion of trains 330, 340, 342, trains 343 and 344, a special train load of 390 tons of drags 140 to 151, inclusive, and "holds" 18 to 21, inclusive, being cars that have been held over and not sent down with former train loads, also 110 tons belonging to block 166. which had been put into a pocket at the docks, and which had been' held until now for shipment. Proportions of older blocks (called "holds",! found not to be needed for a given cargo are also held in cars at the yard, and are put into later blocks, as shown in Fig. 7. In Fig. 6 it will be seen that the elements vary as between different train loads but the average will conform to the requirements of the group which is to be made up. Thus the "holds" 18 to 21, and train 340, would be too high in phosphorus...