VI. LIFE, OR MECHANISM,-WHICH? THE FIFTY-FIRST LECTURE IN THE BOSTON MONDAY LECTURESHIP, DELIVERED IN THE PARK STREET CHURCH NOV. 6. "Tu cuncta superno Ducis ab exemplo, pulchrum pulcherimus ipse "WHAT time this world's great workmaister did cast That wondrous patterne, wheresoeer it be, Perpendicular section through thick layer of epithelium covering a papilla of the tongue, showing the bioplasm or living matter and the formed material of each elementary unit or cell. Here there These are the young In the lower part of figure 1, the cells which are closest to the nutrient matter are seen. are no SEPARATE CELLS, but the soft formed material forms a continuous mass. est bioplasts, and are multiplying in number. When the formed material has accumulated around the bioplasm to some extent the process of multiplication ceases. As the cells advance towards the surface, C, to take the place of those removed, the formed material becomes firin and dry, and the remains of the biopiasm die, when the whole "cell" consists of liteless formed material only. x 700. Bioplasin aud Bioplasm and formed of Development nd spirally round the developing dark bor dered fibre. x about 1800. |