2277. In the hairs the nutritive system is prolonged above the body. 2278. The hairs and scales are the general terrestrial system of the body determined by the air. 2279. Thus the earth has sprung up into a plant. Scales and hairs are like true vegetable leaves, which still continue their process in the animal; they can no longer it is true make their respiratory process hold good for the animal process itself, but are at present content with only oxydizing the material of evaporation. It is properly the integument only, not the entire body, which respires through hairs and scales. 2280. The hairs are dried branchial filaments, and therefore continue to occupy in Man, those situations only where in the lower animals branchiæ or tentacula are placed. Around e. g. the mouth, upon the head, under the arms or in the axillæ, and around the sexual apertures. 2281. The feathers are dried ramified branchiæ, pinnate leaves. 2282. The hairs participate in the electric process of the whole body. 2283. What determines the colour in the plant, determines it also in the animal; only in the plant the colour is more coarsely precipitated, and nothing therefore glimmers from the interior of the body, but all is green. In an animal, however, the colouring matter is transparent, and the interior is thus rendered visible. 2284. With the external coverings, such as scales, and lastly with the hairs, all organs of the trunk, in so far as they are derived from what is vegetable, are exhausted. The vegetable animal, as trunk, is completed, and we must now therefore turn to the sexual organs. 4. SEXUAL ORGANS. 2285. The sexual organs are developments of the integument upon a higher grade, and combinations of the same with the animal systems, like as the blossom is a repetition of all vegetative systems. 2286. They range in the middle between the vegetative and the encephalic animal, and are therefore a totality for themselves, or a sexual animal. 2287. There are vegetative and animal sexual parts. I. _Vegetative Sexual Organs._ 2288. Are special developments of the intestine, vessels and branchiæ. a. SEXUAL ORGANS PROPER. 2289. The proper sexual parts are a repetition of the digestive system on its transition to what is animal, or to the organs of sense. 1. _Female Organs._ 2290. The female parts are a floral capsule, consisting of an ovary or sac, stigma and ova. All higher development takes place, however, through separation of the complicated organs and processes. 2291. The three parts therefore of the gestative sac or matrix separate, each part becoming self-substantially perfected. The orifice elongates into a cervix or neck, which is gradually rendered more distinct from the matrix, and in its highest and self-substantial completion is called oviduct.