Letter from George [Clarke] Simpson, Meteorological Office, Victoria Street, Westminster, to the Royal Society 'Dear Sir, I herewith return the curves belonging to my paper on 'atmospheric electricity in high latitudes'. They are drawn out on a large scale; but I think that the largest (Fig 1) might be reduced to fill a single page of the Transactions, and the others reduced in proportion. I remain, yours respectfully, George C Simpson'. 18 April 1905