Annual Report of the Pennsylvania State College for the Year ...

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Side 261 - ... flame (Davenport-Frear). The optical activity of vinegar often indicates the source. Pure cider vinegar, after clarification with basic lead acetate, is levorotatory, a 200-mm. tube giving usually a reading of — 0.5° to —1.4° on the Ventzke scale. According to 'Browne, levulose is the only sugar present in properly fermented cider vinegar, the sucrose and dextrose having both disappeared in the alcoholic fermentation. Wine vinegar is also slightly levorotatory. Vinegar from sugarhouse wastes...
Side 5 - June 30, 1900 ; that we have found the same well kept and classified as above, and that the receipts for the year from the Treasurer of the United States are shown to have been...
Side 93 - The same author, Professor Hilgard, who is. perhaps, the best authority in this country on the subject of soil, says in another article that " no virgin soil having .50 per cent, or over of potash will wear out first on that side of the store of plant food; and much less will suffice in the presence of much lime and humus.
Side 138 - ... and, by acting on the latent stores of food in the soil, produce at first a most strikingly favourable effect upon vegetation, they soon fail to produce the desired effect if repeated too often, to the exclusion of other fertilising matters.
Side 80 - Now, grammatical analysis and synthesis, while less mechanical and more varied in their operation than elementary mathematics, are nearly or quite equal to it as a means of inculcating the habit of accurate ratiocination. On the other hand, the grammar method is open to criticism on the ground that it neglects two of the most important objects of foreign-language study...
Side 80 - The kernel is the introduction to the life and literature of a great civilized people, whom it is, for some reason, very important for us to know about. And here it may properly be urged on behalf of the modern languages that, just in proportion as they are easier to acquire, the essential benefit of the acquisition is the sooner realized. They give a quicker return upon the investment.
Side 138 - ... yield a miserable return. The remedy for such failures, which are not at all uncommon in localities where poor sandy soils prevail, is a good dose of lime or marl, and then, and only then, farmyard manure or guano may be applied to the greatest advantage. Marl or lime alone does not suffice for meeting all the requirements of our cultivated crops on such poor...
Side 6 - SIR: I have the honor to present herewith the report of the Office of Experiment Stations for the fiscal year ended June 30, 1901.
Side 137 - On soils destitute of lime, most crops, and especially green crops, are subject to disease, and ' root-crops' are apt to fail altogether on such land, even if it has been liberally manured with dung or guano. Up to a certain stage, grain and roots grown under such conditions appear to thrive well, but as the season advances they sustain a check, and at harvest-time yield a miserable return. The...

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