TY - JOUR T1 - Investigation of the Powers of the Prismatic Colours to Heat and Illuminate Objects; With Remarks, That Prove the Different Refrangibility of Radiant Heat. To Which is Added, an Inquiry into the Method of Viewing the Sun Advantageously, with Telescopes of Large Apertures and High Magnifying Powers. By William Herschel, LL. D. F. R. S. JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 90 SP - 255 EP - 283 PY - 1800/01/01/ UR - http://dx.doi.org/10.1098/rstl.1800.0014 M3 - doi:10.1098/rstl.1800.0014 AU - Herschel, W. ER -