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This Book List Sectory 19
Page 09
Higher up in the scale of life we get many instances which show various stages in the same progressive development towards greater care for the safety and education of the young. Among the larger lizards, for example, a distinct advance may be traced between the comparatively uncivilized American alligator and his near ally, the much more cultivated African crocodile. On the banks of the Mississippi, the alligator lays a hundred eggs or thereabouts, which she deposits in a nest near the water's edge, and then covers them up with leaves and other decaying vegetable matter. The fermentation of these leaves produces heat and so does for the alligator's eggs what sitting does for those of hens and other birds: the mother deputes her maternal functions, so to speak, to a festering heap of decomposing plant-refuse. Nevertheless, she loiters about all the time, like Miriam round the ark which contained Moses, to see what happens; and when the eggs hatch out, she leads her little ones down to the river, and there makes alligators of them. This is a simple and relatively low stage in the nursery arrangements of the big lizards.
On the expiration of their year of office all parties were so well satisfied with the manner in which the Decemvirs had discharged their duties that it was resolved to continue the same form of government for another year, more especially as some of them said that their work was not finished. A new Council of Ten was accordingly elected, of whom Appius Claudius alone belonged to the former body. He had so carefully concealed his pride and ambition during the previous year that he had been the most popular member of the council, and the Patricians, to prevent his appointment for another year, had ordered him to preside at the Comitia for the elections, thinking that he would not receive votes for himself. But Appius set such scruples at defiance, and not only returned himself as elected, but took care that his nine colleagues should be subservient to his views. He now threw off the mask he had hitherto worn, and acted as the tyrant of Rome. Each Decemvir was attended by twelve lictors, who earned the fasces with the axes in them, so that 120 lictors were seen in the city instead of 12. The Senate was rarely summoned. No one was now safe, and many of the leading men quitted Rome. Two new Tables were added to the Code, making twelve in all; but these new laws were of the most oppressive kind, and confirmed the Patricians in their most odious privileges.
That there is a close likeness between all these bodies is obvious from the fact that when any of them is strongly heated, or allowed to putrefy, it gives off the same sort of disagreeable smell; and careful chemical analysis has shown that they are, in fact, all composed of the elements carbon, hydrogen, oxygen, and nitrogen, combined in very nearly the same proportions. Indeed, charcoal, which is impure carbon, might be obtained by strongly heating either a handful of corn, or a piece of fowl's flesh, in a vessel from which the air is excluded so as to keep the corn or the flesh from burning. And if the vessel were a still, so that the products of this destructive distillation, as it is called, could be condensed and collected, we should find water and ammonia, in some shape or other, in the receiver. Now ammonia is a compound of the elementary bodies, nitrogen and hydrogen; therefore both nitrogen and hydrogen must have been contained in the bodies from which it is derived.
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