TIMBER TREES.

A paper was read by Sir R. Christison at the last meeting of the

Edinburgh Botanical Society upon the "Growth of Wood in 1880." In a

former paper, he said, he endeavored to show that, in the unfavorable

season of 1879, the growth of wood of all kinds of trees was materially

less than in the comparatively favorable season of 1878. He had now to

state results of measurements of the same trees for the recent favorable

season of 1880. The previous autumn was unfavorable for the ripening of

young wood, and the trees in an unprepared condition were exposed during

a great part of December, 1879, to an asperity of climate unprecedented

in this latitude. This might have led one to expect a falling off in the

growth of wood, and it appeared, from comparison of measurements, that,

with very few exceptions, the growth of wood last year was even more

below the average of favorable years than that of the bad year, 1879.

Thus, in fifteen leaf-shedding trees of various species, exclusive of

the oak, the average growth of trunk girth in three successive years

was: 1878, 8-10ths; 1879, 45-100ths; 1880, 3-10ths and a half. In

four specimens of the oak tribe, the growth was: 1878, 8-10ths; 1879,

77-100ths; 1880, 54-100ths. In twenty specimens of the evergreen

Pinaceae the growth was: 1878, 8-10ths; 1879, 7-10ths; 1880, 6-10ths and

a half. After giving details in regard to particular trees, Sir Robert

stated, as general deductions from his observations, that leaf-shedding

trees, exclusive of the oak, suffered most; that the evergreen Pinaceae

suffered least; and that there was some power of resistance on the part

of the oak tribe which was remarkable, the power of resistance of the

Hungary oak being particularly deserving of attention. In another

communication on the "extent of the season of growth," Sir Robert

stated, as the result of observations on five leaf-shedding and five

evergreen trees, that in the case of the former, even in a fine year,

the growth of wood was confined very nearly, if not entirely, to the

months of June, July, and August; while in the case of the latter growth

commenced a month sooner, terminating, however, about the same time. Mr.

A. Buchan said it was proposed that the inquiry should be taken up more

extensively over Scotland.

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MEDICAL USES OF FIGS.--Prof. Bouchut speaks (_Comptes Rendus_) of some

experiments he has made, going to show that the milky juice of the

fig-tree possesses a digestive power. He also observed that, when some

of this preparation was mixed with animal tissue, it preserved it

it from decay for a long time. This fact, in connection with Prof.

Billroth's case of cancer of the breast, which was so excessively foul

smelling that all his deodorizers failed, but which, on applying a

poultice made of dried figs cooked in milk, the previously unbearable

odor was entirely done away with, gives an importance to this homely

remedy not to be denied.--_Medical Press and Circ._

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Scientific American Supplement, No. 286, June 25, 1881 · 第 57 / 71 题