b'Mass spectrometryMasers Mass cultureDewey: 621.381 Use: Popular cultureBroader Term(s): Amplifiers (Electronics) Mass extinctionsElectromagnetismMicrowaves Dewey: 576.8Use For: Extinction of species, MassMasks (Facial)Dewey: 391.4 Mass feedingBroader Term(s): Costume Use: Food serviceMasks (Plays) Mass mediaDewey: 808.2; 808.82 Geographic Note: May subdivide geographicallyScope Note: Use for individual works, Dewey: 302.23collections, or materials about Use For: Mass communication; Mediamasks. See Also: topics with the subdivision PressUse For: Masques (Plays) coverage, e.g. Food contaminationBroader Term(s): DramaPress coverage; and topics in allPageants mass media, e.g. Sex in mass mediaTheater [to be added as needed]Broader Term(s): CommunicationMasks (Sculpture) Narrower Term(s):Digital mediaGeographic Note: May subdivide geographically Food contaminationPressDewey: 731 coverageUse For: Death masks Motion picturesBroader Term(s): Sculpture NewspapersMasonic orders PeriodicalsUse: Freemasons Radio broadcastingSex in mass mediaMasonry Television broadcastingGeographic Note: May subdivide geographically Violence in mass mediaDewey: 693 Related Term(s): Popular cultureBroader Term(s): Building Mass media literacyStone Use: Media literacyNarrower Term(s):CementConcrete Mass political behaviorPlaster and plastering Use: Political participationStonecutting Political psychologyRelated Term(s): BricklayingMass psychologyMasons (Secret order) Use: Social psychologyUse: FreemasonsMass shootingsMasques (Plays) Geographic Note: May subdivide geographicallyUse: Masks (Plays) Dewey: 364.152Mass See Also: names of specific incidents, e.g.Use: Mass (Liturgy) Ottawa Shootings, Ottawa, Ont.,2014 [to be added as needed]Mass (Liturgy) Broader Term(s): CrimeDewey: 264 Shootings (Crime)Use For: Mass Narrower Term(s):Ottawa Shootings, Ottawa, Ont.,Broader Term(s): Liturgies 2014Related Term(s): Eucharist School shootingsMass communication Mass spectraUse: Communication Use: Mass spectrometryMass media Mass spectrometryTelecommunication Dewey: 543; 547607'