Letter from Sum at the Hermitage to Lewis Dines Remembers that Father did say he thought the Baxendill recorded not the case; is surprised that he did not see the advantage of having the two records on one chart; interesting that various anemometers were set up in the tower at Woodside; cannot say when the float took its new shape, probably 1896 at a guess and explains why. Discusses the P.T. in the Science Museum . 5 December 1950