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" LL.D., of Amherst College, will convince the inquirer that there is an intimate connection between these three sets of facts. The quantity of sap from a sugar maple during the season is much greater than from any other tree flowing from the same causes.... "
Observations on the Phenomena of Plant Life: A Paper Presented to the ... - 第 44 頁
William Smith Clark 著 - 1875 - 111 頁
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Public Documents of Massachusetts, 第 3-4 卷

Massachusetts - 1875 - 692 頁
...indicated in, the meteorological observations, kindly furnished by Prof. ES Snell, LL.D., of Amhcrst College, will convince the inquirer that there is...seem to do so in the spring from a cause entirely different from that which affects the trees Avhich bleed in fall and winter. The grape, which is often...
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Nature, 第 12 卷

Sir Norman Lockyer - 1875 - 606 頁
...amount of their flowing. A paper-birch, fifteen inches in diameter, bled in less than two months over one thousand four hundred and eighty-six pounds of sap ; the maximum flow, on the 5th of May, amounting to sixtythree pounds and four ounces. The grape bleeds comparatively little as...
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Annual Report of the Secretary of the State Pomological Society of ..., 第 4 卷

State Pomological Society of Michigan - 1875 - 592 頁
...temperature as indicated in the meteorological observations, kindly furnished by Prof. ES Snell, LL. D., of Amherst College, will convince the inquirer that...seem to do so in the spring from a cause entirely different from that which affects the trees which bleed in fall and winter. The grape, which is often...
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