Letter from E T [Edmund Taylor] Whittaker, Dunsink Obsrevatory, Co Dublin, to [Joseph] Larmor He gives thanks to Larmor for his writing about radiation, and for copies of papers. From his letter, Whittaker does not quite follow a distinction made when discussing pulse types, giving his own version of the law from his R.A.S. [Royal Astronomical Society] paper. Larmor seems to attach importance to the number of maxima and minima in the pulse, but Whattaker may have misunderstood this. 12 November 1906