Mind in Nature: Or The Origin of Life, and the Mode of Development of Animals

Voorkant
Appleton, 1865 - 322 pagina's
 

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Pagina 96 - ... exactly of the same size, and had the same optical properties as the latter. Some of these appeared to be attached to the ends of the flat, ribbon-like fibres, and others at times loosened themselves and swam away. I was immediately impressed with the daring thought, that these vibrios were the...
Pagina 96 - I was struck with the similarity of these bead-like strings to the fibrillae of the muscle, and upon close comparison I found that the former were exactly of the same size, and had the same optical properties as the latter. Some of these appeared to be attached to the ends of the flat, ribbon-like fibres, and others at times loosened themselves and swam away. I was...
Pagina 98 - Amelia flavtdula, our common jelly-fish, I observed that the whole component mass of cells was in violent agitation, each cell dancing zigzag about within the plane of the wall. If any one will shake about a single layer of shot in a flat pan, he can obtain an approximate idea of the appearance of this moving mass. In a perfectly healthy condition, these cells lie closely side by side, and do...
Pagina 174 - Planaria lay eggs out of which Paramecium were born, which underwent all the changes these animals are known to undergo up to the time of their contraction into a chrysalis state; while the Opalina is hatched from Distoma eggs.

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