Ratum sane est et in ovo manifeste apparet quod Aristoteles de perfectorum animalium generatione enuntiat: nimirum, non omnes partes simul fieri, sed ordine aliam post aliam; primumque existere particulam genitalem, cujus virtute postea (tanquam ex principio quodam) reliquae omnes partes prosiliant.
Dionysius was also the author of several rhetorical treatises, in which he shows that he has thoroughly studied the best Attic models: The Art of Rhetoric (which is rather a collection of essays on the theory of rhetoric), incomplete, and certainly not all his work; The Arrangement of Words (IIEpi 6uv%o-Ews ovo,uarwv), treating of the combination of words according to the different styles of oratory; On Imitation (Ilepi Au170 Ews), on the best models in the different kinds of literature and the way in which they are to be imitated - a fragmentary work; Commentaries on the Attic Orators (IIEpi T(AV apXalwv prtrOpwv inro j j anopoi), which, however, only deal with Lysias, Isaeus, Isocrates and (by way of supplement) Dinarchus; On the admirable Style of Demosthenes (IIEpi Anyoa8 'ous b€t)orrlros); and On the Character of Thucydides (Hepi Tou Oovevbibov a detailed but on the whole an unfair estimate.
Y, The ovo-testes.
It is an ovo-testis.
From it passes a common or herma i, Ovo-testis.
But when the male secretion of the ovo-testis is active, the seminal fluid passes from the genital pore along the spermatic groove (fig.
39) to the penis, and is by the aid of that eversible muscular organ introduced into the genital pore of a second Aplysia, whence it passes into the spermatheca, there to await the activity of the female element of the ovo-testis of this second Aplysia.
From the ovo-testis, which lies near the apex of the visceral coil, a common hermaphrodite duct ve proceeds, which receives the duct of the compact white albuminiparous gland, Ed, and then becomes much enlarged, the additional width being due to the development of glandular folds, which are regarded as forming a uterus u.
The male duct vd becomes fleshy and muscular near its termination at the genital pore, forming the penis p. Attached to it is a diverticulum fl, in which the spermatozoa which have descended from the ovo-testis are stored and modelled into sperm ropes or spermatophores.
But in 1681 Gerard Blasius had brought out at Amsterdam an Anatome Animalium, containing the results of all the dissections of animals that he could find; and the second part of this book, treating of Volatilia, makes a respectable show of more than one hundred and twenty closely-printed quarto pages, though nearly two-thirds is devoted to a treatise De Ovo et Pullo, containing among other things a reprint of Harvey's researches, and the scientific rank of the whole book may be inferred from bats being still classed with birds.
Many lizards, however, retain the eggs in the oviducts until the embryo is fully developed; these species then bring forth living young and are called ovo-viviparous by purists.
- Pleurodont; teeth solid, sometimes (Ophiosaurus) grooved; anterior part of tongue emarginate and retractile into the posterior portion; osteoderms on the body, and especially on the head where they are roofing over the temporal fossa; entirely zoophagous and ovo-viviparous.
OvO"LV a1)rbr 0[1 paO fl ral abTOU cal [Xi]yovo tv 71-Cos vr 1 UTEb[vo% LEV cal 1rW S ..
He published at Oxford in 1668 two tracts, on respiration and rickets, and in 1674 these were reprinted, the former in an enlarged and corrected form, with three others "De sal-nitro et spiritu nitro - aereo," "De respiratione foetus in utero et ovo," and "De motu musculari et spiritibus animalibus" as Tractatus quinque medico-physici.
In front lie the Villa Communale (first called Reale and subsequently Nazionale) public gardens, the chief promenade of the city, which were first laid out in 1780, and have been successively extended in 1807, in 1834, and again in recent years; and the whole edge of the bay from the Castel dell' Ovo to Mergellina is lined by a massive embankment and carriageway, the Via Caracciolo, constructed in 1875-1881.
Del Salvatore, the Megaris of Pliny), now joined to the shore at the foot of the Pizzofalcone by an archsupported causeway, stands the Castel dell' Ovo (so called from its shape, though medieval legend associates the name with the enchanted egg on which the magician Virgil made the safety of the city to depend), which dates from 1154.