Nova Scotian Institute of ScienceRitchie, Stephen G.2011-03-262011-03-261935Ritchie, S.G. (1935). Determination of the initial and final sets of plaster of Paris. Proceedings of the Nova Scotian Institute of Science, 18(4), 263-266.http://hdl.handle.net/10222/13291Received October 10, 1934. Includes bibliographical references.enPlaster casts, DentalDentistryDetermination of the initial and final sets of plaster of ParisText