Abstract
REFERRING to Mr. J. E. Clark's interesting article on the above subject in NATURE of February 16, I would suggest that a consideration of the different variations of temperature between Falmouth and London will help to solve the problem. From phenological observations I have made at Falmouth for many years past, it would appear that on an average this district is earlier than nearly all other parts of England in January and February by about a fortnight, but that after those months the lead is lost and the flowering and leafing of trees, etc., are retarded by our situation being near the coast line, where the waters of the European current play such an important part in lowering the land temperatures in summer and raising them in the winter. It is not always sufficiently realised how much longer the sea requires than the land to gain its summer heat and then to lose it again. Thus we find from the records of 41 years that the mean temperature of the sea in December is 50.1°, whilst in January, February, March, and April it is less, viz. 48.0°, 47.0°, 47.3°, and 49° respectively.
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FOX, W. Flowering Dates of Trees. Nature 109, 310 (1922). https://doi.org/10.1038/109310a0
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DOI: https://doi.org/10.1038/109310a0
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