Exercise for 03 November 2018Note: Try to summarize the below paragraphs below individually and then try to come up with a single line summary/title for the extract. I strongly encourage you to do this exercise mentally - without writing the summaries anywhere. Once done, type your summary/title below and read the article and it's title and match the article's summary with yours. Both the summaries should be close enough. Try to time yourself - take no more than 3 minutes to complete this activity.Sample:At the time of the discovery of gold in California the mineral industry of the United States was in its very infancy, as may be judged from the fact that the annual output of coal, which in 1895 reached the enormous total of 196,442,451 tons, in 1848 amounted only to 5, 000,000 tons, and that the total output of pig iron was but a quarter of a million tons, as against nine and a half million tons in 1895. Lead was mined to the modest extent of 10,000 tons, and it was but two years previous to the discovery of gold, or in 1846, that copper mining had its small beginning with a total output of 150 tons.
The effect of the Sutter's Mill discovery was simply magical. Its announcement was received with unbounded enthusiasm, and it drew a vast and motley army of adventurers to the Pacific coast in search of the precious metal. When we consider how crude were the methods of recovery, the yield of gold was truly phenomenal. In the first year about $10,000, 000 worth was taken out ; this rose to $40, 000, 000 in 1849 ; $50, 000,000 in 1850 ; $55, 000,000 in 1851 ; $60,000, 000 in 1852 ; and it reached its highest point in 1853, when a total value of $65, 000, 000 was recovered.
During these first six years, the methods of extracting the gold were very crude, and therefore very wasteful. The mining was carried on in what were known as placer deposits and the favorite apparatus of the " forty-niner " consisted of the pan, the rocker, the Long Tom and the sluice box.
In the course of time, as the rich alluvial deposits became worked out, the miner turned his attention to the gold-bearing rock, and the recovery of the gold became a more difficult and costly matter. There was a call for science, skill, and capital, and the gold mining industry passed into the hands of the engineer and the capitalist. The pan, the rocker, and the sluice gave place to the highly organized stamp mill, with its costly plant consisting of stamp batteries, amalgamating pans and concentrating tables. Chemistry was called in to determine the composition of the various ores, and the expert metallurgist became an indispensable member of the staff of the mine. In due time the rebellious ores came to be treated by roasting, and last, and most brilliant feat of all was the introduction of the various leaching processes, by which in some cases practically the last trace of the gold has been recovered from the tailings.
Mention should also be made of the remarkable development of hydraulic mining, whereby enormous deposits of gravel, which contain only a few cents' worth of gold to the cubic yard, can be worked at a profit. As its name indicates, the mining is done by the action of water, which is discharged under enormous pressure against the wall of gravel and bowlders, tearing it down and thoroughly segregating the material which is then carried through sluices, where the gold is deposited.
The extract was taken from page #96 in "Scientific American" journal dated at 25 July 1896
P1: The situation of Min industry in USA during the discovery of Gold in California.
P2: Significant impact of SM discovery. Yield of G (upward)
MP: the discovery of gold, its impact and the evolution of methods of mining
Where should the birds fly after the last sky?
__Mahmoud Darwish