strip at the base of the shell, and the head disks by Mr. Edison for separating magnetic sands from the non- per square meter, from 1 to 2-8 inch thick. The designs lack strength. Our engraving represents a new method of magnetic particles of ore by altering the trajectory of the on the surface… … men of the thickness that can be given to cast glass, there was shown a disk 4:03 feet in diameter by 814 inches thick, weighing more than 1,320 pounds. This disk is an exact The tube, which is of paper, has one end flanged inter- duplicate of the one offered to the French Observatory to nally to…
Internet Archive · Public domain (published before 1931). Free to use for anything.
