The local precipitation indexes, w/L (namely, the ratio of the specific humidity to the lift required to initiate condensation), at Washington, D. C., and Buffalo, N. Y., from which directions the storms reaching Blue Hill usually arrive, are moderate to large shortly before and during (all but near the end of) a heavy snowstorm at Blue Hill, and give some indication of the amount of precipitation to be expected.

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Footnotes

1 Now with the Woods Hole Oceanographic Institution, c/o Museum of Comparative Zoology, Cambridge 38, Mass.