Elementary Plant Biology

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Page 118 - When we reflect on this struggle, we may console ourselves with the full belief, that the war of nature is not incessant, that no fear is felt, that death is generally prompt, and that the vigorous, the healthy, and the happy survive and multiply.
Page 105 - TTot 1 materials) from around the embryo corn plant. Plant the corn grains and the corn embryos in rich soil, covering both with the same depth of earth, and marking the location of the two sets. Put them in a warm place. 1 . Describe the preparation of the experiment. 2. At the end of two weeks state the number of each group of seedlings that have pushed through the soil. 3. What difference in the size of the two sets of seedlings do you notice at the end of two weeks? at the end of three weeks?...
Page 213 - Science," the distinctive features of which are : 1 . The book gives a broad, adequate view of the general field of science. The elements of physics and chemistry receive particular emphasis, but biology, physiography, and several phases of applied science are duly considered. 2. Despite the necessity for treating various sciences, the book is remarkable for its continuity of thought. The interrelation of scientific facts is constantly and clearly pointed out. 3. The treatment is clear-cut, brisk,...
Page 124 - The average labor income of high school men was $622. Of the more than high school men (ie college, normal, or agriculture courses) it was $847. The differences are emphatic. The labor income of the high school farmers is $304 greater than that of the district school men. This would be 5 per cent interest on $6080. In other words the high school education of a farmer is equivalent, on the average, to $6000 worth of 5 per cent bonds.
Page 122 - Gas. Along with this wonderful recent growth of the petroleum industry in West Virginia there has been a corresponding increase in the production of natural gas, so that this State now stands first of all the States of the Union in the production of this matchless fuel, and with proper care in husbanding this source of power and the prevention of needless waste it should last for another generation at least.
Page 83 - ... only with the crossed plants; whereas the whole surface of the ground is naturally covered with various kinds of plants, all of which have to struggle together for existence. The ensuing winter was very severe, and in the following spring (1871) the plants were again examined. All the selffertilised were now dead, with the exception of a single branch on one plant, which bore on its summit a minute rosette of leaves about as large as a pea.
Page 124 - EDUCATION IN DIFFERENT TOWNSHIPS. * Less than I per cent. Profits and education. Of the owners, those who went only to district school made an average labor income of $318 (Table 117). The average labor income of high school men was $622. Of the more than high school men it was $847. The differences are emphatic. The labor income of the high school farmers is $304 greater than that of the district school men. This would be 5 per cent interest on $6,080. In other words...
Page 124 - Profits and education. Of the owners, those who went only to district school made an average labor income of $318 (Table 117). The average labor income of high school men was $622. Of the more than high school men it was $847. The differences are emphatic. The labor income of the high school farmers is $304 greater than that of the district school men. This would be 5 per cent interest on $6,080. In other words, the high school education of a farmer is equivalent, on the average, to $6,000 worth...
Page 191 - Collaborator, Bureau of Forestry. INTRODUCTION. For the purposes of the present discussion "forest" must be understood to mean a growth of trees sufficiently dense to form a fairly unbroken canopy of tops, not a scattered growth of low. round-headed trees with bushes and herbage constituting the dominant types of vegetation. Forests of this kind do not occur in the United States where the mean annual precipitation falls below...
Page 144 - It has long been known that corn and other crops will grow better in soil that has just borne a crop of peas, beans, clover, or other members of the pea family.

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