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Plaster expands while hardening then contracts slightly just before hardening completely. This makes plaster excellent for use in molds, and it is often used as an artistic material for casting. Plaster is also commonly spread over an armature (form), made of wire mesh, cloth, or other materials; a process for adding raised details.
Pietro Paulo Caproni (1862–1928) was founder and co-owner of PP Caproni & Brother, Boston, Massachusetts, manufacturers of plaster reproductions of classical and contemporary statues. These 'cast' reproductions were, in an era before commercial photography, an integral educational tool in teaching people the history of art and antiquities.
Plaster for hair slabs made with manila hemp fiber broke at 195 lb (88 kg), plaster mixed with sisal hemp at 150 lb (68 kg), jute at 145 lb (66 kg), and goats' hair at 144 lb (65 kg). [citation needed] Another test was made in the following manner. Two barrels of mortar were made up of equal proportions of lime and sand, one containing the ...
The area marked Boston Common corresponds to Blaxton's original property. The written history of Boston begins with a letter drafted by the first European inhabitant of the Shawmut Peninsula, William Blaxton. This letter is dated September 7, 1630, and was addressed to the leader of the Puritan settlement of Charlestown, Isaac Johnson.
Manila hemp fiber has been used as a substitute for hair. Plaster for hair slabs made with manila hemp fiber broke at 195 pounds (88 kg), plaster mixed with sisal hemp at 150 pounds (68 kg), jute at 145 pounds (66 kg), and goats' hair at 144 pounds (65 kg). [citation needed] Another test was made in the following manner. Two barrels of mortar ...
The mummy arrived in Boston on April 26, 1823, on the British ship the Sally Ann [27] and was the first complete Egyptian burial ensemble in America. He was placed under the care of the ship's captain, Robert B. Edes, along with Bryant P. Tilden, Esq., who ultimately made the decision to give the mummy to Massachusetts General Hospital, whose ...
Lath and plaster is a building process used to finish mainly interior dividing walls and ceilings. It consists of narrow strips of wood ( laths ) which are nailed horizontally across the wall studs or ceiling joists and then coated in plaster .
The architecture of Boston is a robust combination of old and new architecture. As one of the oldest cities in North America, Boston, Massachusetts (along with its surrounding area) has accumulated buildings and structures ranging from the 17th-century to the present day, having evolved from a small port town to a large cosmopolitan center for education, industry, finance, and technology.