| Description | Harrison acknowledges Drygalski's letter of 19 December, and explains that as they only have one copy of the Observations of Days of Unusual Magnetic Disturbance, edited by Colonel Sabine, 1840-1841, he does not feel able to loan it to someone abroad. He has contacted the Stationary Office, where it was printed, to request that, if any copies remain, one may be presented to him. If that fails, Harrison will seek special authority for the loan. |