 | United States National Museum - 1889 - 916 Seiten
...the work of lettering head-stones, and for producing delicate tracings on Hie Sioux Falls quartzite. That the process is still so little used is due, as...to the opposition of trades-unions, and not to any delicieucy of adaptability in the process itself. (8) 'HAND IMPLEMENTS. Face hammer. — This is a... | |
 | George Perkins Merrill - 1889 - 414 Seiten
...delicate tracings on the Sioux Falls quartzite. That the process is still so little used is due, ns I am informed, to the opposition of trades-unions,...adaptability in the process itself. • (8) HAND IMPLEMENTS. Faee liammer. — This is a heavy square-faced hammer, weighing from 15 to 25 pounds, and used for... | |
 | George Perkins Merrill - 1889 - 416 Seiten
...delicate tracings on the Sioux Falls quartzite. That the process is still so little used is due, aa I am informed, to the opposition of trades-unions,...not to any deficiency of adaptability in the process itsclf. (8) HAND IMPLEMENTS. Face hammer. — This is a heavy square-faced hammer, weighing from 15... | |
 | George Perkins Merrill - 1891 - 500 Seiten
...the work of lettering head-stones, and for producing delicate tracings on the Sioux Falls quartzite. That the process is still so little used is due, as...made with both faces alike or again with one face flat and the other drawn out into a cutting edge (Fig. 10, PI. XI.) The cavil differs only in having... | |
 | George Perkins Merrill - 1891 - 498 Seiten
...the work of lettering head-stones, and for producing delicate tracings on the Sioux Falls quartzite. That the process is still so little used is due, as...adaptability in the process itself. (8) HAND IMPLEMENTS. Face Hammer.—This is a heavy square-faced hammer, weighing from 15 to 25 pounds, and used for roughly... | |
 | 1894 - 310 Seiten
...Hammer. — This is a heavy square-faced hammer, weighing from fifteen to twenty-five pounds, and is used for roughly shaping the blocks, as they come...made with both faces alike, or again with one face flat, and the other drawn out into a cutting edge.1 The cavil differs from it, only in having one face... | |
 | Samuel Washington McCallie - 1907 - 258 Seiten
...Hammer. — This is a heavy square-faced hammer, weighing from fifteen to twenty-five pounds, and is used for roughly shaping the blocks, as they come...made with both faces alike, or again with one face flat, and the other drawn out into a cutting edge.1 The 1 See figure 10, plate XXX. cavil differs from... | |
 | George Perkins Merrill - 1908 - 678 Seiten
...the work of lettering head-stones, and for producing delicate tracings on the Sioux Falls quartzite. That the process is still so little used is due, as...informed, to the opposition of trades-unions, and riot to any deficiency of adaptability in the process itself. (8) HAND IMPLEMENTS. Face Hammer. —... | |
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SAND BLAST. As already noted, the sand blast has been utilized to some extent in the work of lettering head-stones, and for producing delicate tracings on the Sioux Falls quartzite. That the process is still so little used is due, as I am informed, to... 