dges ofwhich are so finely scraped down, that the edgeof one hemisphere is made to overlap its coun-terpart with thegreatest nicety. Thus one ball iseasily inclosed within another. The joiningsare then united by a peculiarly strong cement,aided by the employment of steam and pres-sure. He says that…
Design · Decoration and ornament · Art
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
