 | 1857 - 450 páginas
...associated into discoid bundles. These are furnished with vibratile cilia, and oscillate, at first slowly, in their prism, but the movement soon becomes more...curved like the neck of a swan, possesses sufficient contractility to execute the most varied movements. These spermatozoids, so soon as they are able to... | |
 | 1858 - 358 páginas
...associated into discoid bundles. These are furnished with vibratile cilia, and oscillate, at first slowly in their prism, but the movement soon becomes more...their constituent elements. The free corpuscles are ^ery agile, and it is impossible to regard them as anything but true spermatozoids ; they are linear... | |
 | Andrew Pritchard - 1861 - 1072 páginas
...associated into discoid bundles. These are furnished with vibratile cilia, and oscillate at first slowly in their prism ; but the movement soon becomes more...curved like the neck of a swan, possesses sufficient contractility to execute the most varied movements. These spermatozoids, so soon as they are they are... | |
 | 1857 - 458 páginas
...associated into discoid bundles. These are furnished with vibratile cilia, and oscillate, at first slowly, in their prism, but the movement soon becomes more...curved like the neck of a swan, possesses sufficient contractility to execute the most varied movements. These spermatozoids, so soon as they are able to... | |
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... cells, on the contrary, which acquire the size and form of the female cells, the green plasma may be seen to divide symmetrically into an infinity of very minute particles, or linear corpuscles associated into discoid bundles. These are furnished... 