. The microscope and its revelations. raintmn, Griffithsia, CalUthammon,.nid Ptllota are extremely beautiful objects for low powers whenmounted in glycerin jelly. In many of them the phenomenon towhich we have previously referred under the name of continuity ofprotoplasm is very beautifully exhibited. The colour of the red 631 seaweeds is due to the presence of a pigment known as rkodosperminor phyco-erythrin, soluble in fresh watei, which may be separated inthe form of beautiful regular crystals. The only mode of propagation which was until recently knownto exist in this group of se
. The microscope and its revelations. raintmn, Griffithsia, CalUthammon,.nid Ptllota are extremely beautiful objects for low powers whenmounted in glycerin jelly. In many of them the phenomenon towhich we have previously referred under the name of continuity ofprotoplasm is very beautifully exhibited. The colour of the red 631 seaweeds is due to the presence of a pigment known as rkodosperminor phyco-erythrin, soluble in fresh watei, which may be separated inthe form of beautiful regular crystals. The only mode of propagation which was until recently knownto exist in this group of seaweeds is the production and liberationof tetraspores (fig. 472, B), formed by two successive binarysubdivisions of the contents of special cells, which sometimesform part of the general substance of the frond, but sometimescongregate in particular parts or are restricted to special the second binary division takes place in the same direction asthe first, the tetraspores are arranged in linear series ; but if its JF SJ) Q.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmicrosc, bookyear1901
