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For this phase, Romanes has coined the term physiological isolation. Something in the structure or habit of the animals with the new variation prevents them from mating with the older type. Occasionally it is a difference in the structure of the reproductive organs themselves. This, however, is not the only possible divergence.
Shortly after pregnancy has become established changes begin in the uterus, as physicians call the womb, and soon reach the point where they may be recognized by a simple examination which enables the physician to express an opinion little less than positive. As one result of pregnancy, for example, the supply of blood is increased to all the organs concerned with the reproductive process.
Are you not ashamed to tell me that in that art you do but utter the thoughts of others? You utter them in music; through the music you not only give to the thoughts a new character, but you make them reproductive of fresh thoughts in your audience. You said very truly that you found in composing you could put into music thoughts which you could not put into words.
We have seen that the sterility of hybrids, which have their reproductive organs in an imperfect condition, is a very different case from the difficulty of uniting two pure species, which have their reproductive organs perfect; yet these two distinct cases run to a certain extent parallel.
He tells me that it is the practice of many large school boards in this country to dismiss women teachers on marriage, or to refuse promotion to these when they become mothers, which is, of course, bad for the race if personal and reproductive value are identical. He would have them retain their positions regardless of the check to their efficiency maternity entails.
Fortunately graduation soon occurred, and unintermitted, sustained labor was no longer enforced. The menorrhagia ceased, but persistent dysmenorrhoea now indicates the neuralgic friction of an imperfectly developed reproductive apparatus. Doubtless the evil of her education will infect her whole life. The next case is drawn from different social surroundings.
For example, we may think of various plays which involve instinctive actions as being wholly explained by, or to be made up of, these instinctive acts alone, whereas in most plays that take the form of excitement, abandon or ecstasy, there are being employed processes which are general in the sense of reënforcing all the specific acts alike, and are yet specific in the sense that they are themselves, or have been, practical: that is, they are in reality processes that belong to the fundamental strata of consciousness to the nutritional and reproductive tendencies.
The reproductive image never duplicates experience, but in its major features it closely corresponds to it, whereas the productive image breaks up old experiences and from them makes new wholes which correspond to no definite occurrence. The elements found in both kinds of imagery must come from experience. One cannot imagine anything the elements of which he has not experienced.
That, though entirely acquiescing in the justice of imposing upon the land the repayment of all money advanced for reproductive purposes, we solemnly protest, in the name of the owners and occupiers of land in Ireland, against the principle of charging exclusively on their property, the money which they have been forced to waste on unproductive works.
Their testicles withered and dried up secrete nothing but a serous fluid void of all virtue; the erectile tissue no longer admits into its plexus the quantum of blood necessary for turgescence, the principal organ of the reproductive act remains in a state of flaccidity, insensible to the reiterated and most stimulating solicitations; the muscles destined to favour erection are stricken with paralysis, and the violence of their desires, joined to the want of power to gratify them, drives the unhappy victim to acts of the most revolting lubricity and thence to despair.
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