TY - JOUR T1 - Letter from Mr. John Baptist Beccaria, of Turin, F. R. S. to Mr. John Canton, F. R. S. on His New Phosphorus Receiving Several Colours, and Only Emitting the Same JF - Philosophical Transactions (1683-1775) VL - 61 SP - 212 EP - 212 PY - 1771/01/01/ UR - http://dx.doi.org/10.1098/rstl.1771.0025 M3 - doi:10.1098/rstl.1771.0025 AU - Beccaria, J. ER -