Lectures Addressed to Teachers on Preparation for Obtaining Science Certificates and the Method of Teaching a Science Class. Lect - Softcover
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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1862 edition. Excerpt: ... of a flowering plant at least. The flowerless plants, however, have a high interest, and where the teacher is well versed in their structure he may easily compare their organs with those of flowering plants. When the differences of the various organs are well understood, the attention of the pupil may be drawn to some of the general facts in the structure of plants. There is no one more calculated to produce an impression and to bear fruit than the general fact that all parts of a plant are referable to changes in the leaf or the stem. Without at all endeavouring to inculcate upon the mind of the student the doctrine of archetypes in nature, the simple plan of a plant such as is given in Schleiden's "Plant a Biography" may be exhibited with advantage to the student. He will then see that every organ is represented as being a modification of stem or leaf. In order to impress this general law on the mind a variety of plants should be presented to the student in various stages of growth. Flowers and fruit are especially complicated in some plants, and the student should be encouraged to point out what he regards as stem structures and what as leaf structures. As a subordinate morphological law, I would point to the general fact that leaves assume their various forms according to the relative growth of the vascular and cellular tissues. At almost all seasons of the year, leaves enough to illustrate this fact may be found. The spines of the furze and the barberry, the cut leaves of the Umbelliferse, the entire leaves of the cabbage, the serrated leaves of the dandelion, and the I succulent leaves of the house-leek, are some of the examples which might be produced to impress this law. Very striking are the laws relating to numbers....
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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1862 edition. Excerpt: ... of a flowering plant at least. The flowerless plants, however, have a high interest, and where the teacher is well versed in their structure he may easily compare their organs with those of flowering plants. When the differences of the various organs are well understood, the attention of the pupil may be drawn to some of the general facts in the structure of plants. There is no one more calculated to produce an impression and to bear fruit than the general fact that all parts of a plant are referable to changes in the leaf or the stem. Without at all endeavouring to inculcate upon the mind of the student the doctrine of archetypes in nature, the simple plan of a plant such as is given in Schleiden's "Plant a Biography" may be exhibited with advantage to the student. He will then see that every organ is represented as being a modification of stem or leaf. In order to impress this general law on the mind a variety of plants should be presented to the student in various stages of growth. Flowers and fruit are especially complicated in some plants, and the student should be encouraged to point out what he regards as stem structures and what as leaf structures. As a subordinate morphological law, I would point to the general fact that leaves assume their various forms according to the relative growth of the vascular and cellular tissues. At almost all seasons of the year, leaves enough to illustrate this fact may be found. The spines of the furze and the barberry, the cut leaves of the Umbelliferse, the entire leaves of the cabbage, the serrated leaves of the dandelion, and the I succulent leaves of the house-leek, are some of the examples which might be produced to impress this law. Very striking are the laws relating to numbers....
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