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Published online by Cambridge University Press: 06 July 2012
Having undertaken to continue the observations on the growth of trees commenced by my father in 1878, and carried on by him with unflagging zeal until a few months before his death in 1882, I give in the present paper the measurements made by him in 1881, which he did not live to publish, and those made in 1882 by myself. I shall also endeavour to point out the conclusions which may be drawn from the whole series of observations, beginning in 1878, arranging them under the heads of—
I. Annual Observations.
II. Monthly Observations.
III. Influence of Weather on the Growth of Wood.
page 48 note * Sir Robert Christison believed that they also had declined, although to a less extent, but he was misled by an error in the figures of his MS.
page 57 note * Since this paper was read, the spring measurements for 1883 show a growth in April amounting to two-fifths of that in May in twenty evergreens under observation. It appears probable therefore that June is the month of greatest growth for evergreens.
page 65 note * See foot note, page 57.
page 66 note * Note.—In Table III. the average growth of the Evergreen trees for May and June 1881 should be 0 65 instead of 0 48, and the monthly percentages 59, 15, 26, instead of 51, 18, 31. The latter errors occur also in Table VII. The conclusions in the text are not materially affected by these errors, except that the claim of August to the highest average monthly growth in 1881, mentioned on page 57, becomes very doubtful.
