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Until recently it was regarded as a general rule that, by the partial segmentation of the vitellus a germinal disc was formed, and in this, corresponding to the ventral surface of the embryo, a primitive band. According to Mr.
Yes, somewhat as all Insects are identical, small animals with head, thorax, and abdomen; that is to say if, only noticing what is common to them, we leave out of consideration the difference of their development, the presence or absence and the multifarious structure of the vitelline membrane, the varying composition of the vitellus, the different number and formation of the germinal spots, etc.
But how do these propositions agree with our observations on the developmental history of the Crustacea? "The ovarian eggs of all animals are identical, small cells with vitellus, germinal vesicle and germinal spot."
We know who built the Coliseum, but in its unstoried origin, the Veronese arena has the mystery of the Pyramids. Was its founder Augustus, or Vitellus, or Antoninus, or Maximian, or the Republic of Verona?
Antipas inquired, with sudden recollection. Before Phanuel could reply, a Negro entered the room in great haste. He was covered with dust, and panted so violently that he could scarcely utter the single word: "Vitellus!" "Has he arrived?" asked the tetrarch. "I have seen him, my lord. Within three hours he will be here."
"The organs of the body are formed in the sequence of their organic importance; the most essential always appear first. "Thus, in Fishes, the first changes consist in the segmentation of the vitellus and the formation of a germ, processes which are common to all classes of animals.
It was not without reluctance and remorse, that the prætorian guards had been persuaded to abandon the cause of the tyrant. The rapid downfall of Galba, Otho, and Vitellus, taught the armies to consider the emperors as the creatures of their will, and the instruments of their license.
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