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Updated: May 24, 2025
These, being done some time ago, and the sowing retarded by frequent rains, had got hard; therefore, 4. before the seed was sown, these ridges were split again by running twice in the middle of them, both times in the same furrow; 5. after which the ridges were harrowed; and, 6. where the ground was lumpy, run a spiked roller with a harrow at the tail of it, which was found very efficacious in breaking the clods and pulverizing the earth, and would have done it perfectly, if there had not been too much moisture remaining from the late rains.
Quartz mining differs much from placer mining. For the former, more capital, more experience, more complicated machinery and richer material are required than for the latter. The placer miner throws the dirt into the water, which then does the work; whereas the pulverizing of rock is a nice operation, requiring constant attention.
This suggestion was thrown out of court by the published depth of the canal, which was entirely insufficient to conceal so large an object. The second correspondent wrote calling attention to the bag which appeared to be the sole luggage which the travellers had brought with them, and suggesting that some novel explosive of immense and pulverizing power might have been concealed in it.
The General Allotment Act is a mighty pulverizing engine to break up the tribal mass. It acts directly upon the family and the individual. Under its provisions some sixty thousand Indians have already become citizens of the United States. We should now break up the tribal funds, doing for them what allotment does for the tribal lands; that is, they should be divided into individual holdings.
The invention consists in a very simple device, by which the whole force of pulverizing the ground is applied to propel the machine, and if this be not sufficient, an independent force may be applied, so arranged as to govern the speed of the machine at the will of the operator.
All the vast mass of things that had confronted and bullied her so long was swept into a rhetorical dustpan, and she could feel herself at length as a human soul without having to remember her possessions. Mrs. Frankland's phrase of "the weary rich" exactly fitted her, and to her Mrs. Frankland's eloquent pulverizing of the glory of this world brought a sort of emancipation. Mrs.
"Bone coal is a product made by burning and pulverizing the large bones left at the abbatoirs until a coarse-grained black powder not unlike emery sand is made; if this is not allowed to become too fine with using it is an excellent sugar filter.
Not having had an opportunity to inspect any of the gold mines personally, I know not if the ores readily melt of themselves, or whether they require the aid of any fluxes before they yield the metal; but I believe the principal attention of the miners is directed to the rich veins of pure native gold, and that no operation is performed beyond that of pulverizing, and simple washing; all the gold about Pontiana being in dust, though some I have met with in Borneo Proper was run into bars.
Burned lime has also been much used, but in more recent years the development of machinery for crushing and pulverizing rock especially in cement manufacture has made possible the production of pulverized natural limestone, and at much less expense than for caustic lime made by burning and slaking.
Great areas do have some beds that should be used, and a low-priced machine for pulverizing it is the solution of the problem. Such a machine must be durable, have ability to crush the stone to the desired fineness and be offered at a price that does not seem prohibitive to a farmer who would meet the demands of a small farming community.
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