TY - JOUR T1 - A New Type of Series in the Band Spectrum Associated with Helium JF - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934) VL - 91 IS - 627 SP - 208 EP - 216 PY - 1915/03/01/ UR - http://dx.doi.org/10.1098/rspa.1915.0011 M3 - doi:10.1098/rspa.1915.0011 AU - Fowler, A. ER -