Luminosities and Temperatures of Dust with SPIRE for Most Luminous Quasars to z = 5

SPIRE photometry is proposed for the 156 most infraredluminous quasars with 1.5 < z < 5 to determine accurate total infrared luminosities and evolution of luminosity and dust temperature. Sources are chosen using new mid infrared measures with the Wide Field Infrared Survey Explorer of quasars from the Sloan Digital Sky Survey. SPIRE will measure all quasars in this redshift range at rest frame 80 micron, near the luminosity peak, and will give full SEDs from rest frame ultraviolet to far infrared when combined with WISE and SDSS data. Results can be compared to existing archival results for the most luminous, heavily obscured, type 2 quasars discovered with Spitzer and contained in Herschel key project survey fields. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]