109. Respondeo, quod prout ex Guaccio dictum fuit supra nº 81: alii sunt hujusmodi Dæmones terrei, alii aquei, aerei alii, et alii ignei, qui respective in propriis eorum elementis habitant. Videmus autem animalia eo majora esse quo majus est elementum in quo degunt, ut patet in piscibus, inter quos licet multi sint minuti, ut etiam sunt plura animalia terrestria minutissima, et tamen quia elementum aquæ majus est elemento terræ (utpote continens majus semper est contento), ideo pisces a tota specie superant in magnitudine molis animalia terrestria, ut patet in balenis, orcynis, pistis seu pistricibus, thynnis, ac aliis piscibus cetaceis, seu viviparis, qui quodvis animal terrestre longe superant. Porro cum Dæmones hujusmodi animalia sint, ut hucusque probatum est, eo erunt majores in magnitudine quo elementum majus pro sui natura inhabitabunt. Et cum aer excedat aquam, et ignis aere major sit, sequitur, quod Dæmones ætherei ac ignei longe superabunt terrestres et aqueos, tum in mole corporis, tum in virtute. Nec contra hoc facit instantia de avibus, qui licet incolant aerem, qui major est aqua, tamen corpore minores sunt a tota specie piscibus et quadrupedibus, quia aves, licet per aerem volatu spatientur, revera tamen pertinent ad elementum terræ, in qua quiescunt; aliter enim pisces nonnulli qui volant, ut hirundo marina, et alii, dici deberent animalia aerea, quod falsum est. 109. I reply that, as has been said above, N^r 81, from Guaccius, some of those Demons are earthly, some aqueous, some aerial, some igneous, and they all dwell in their respective element. Now, it is well known that animals are of larger size, according to the element they live in; thus with fishes, many of which are diminutive, it is true, as happens with animals that live on land; but, the element water being larger than the element earth, since the container is always larger than the contents, fishes as a species, surpass in size the animals that dwell on land, as shown by whales, tunnies, cachalots, and other cetaceous and viviparous fish which surpass by far all animals that live on land. Consequently, these Demons being animals, as has been shown, their size will be proportionate to the extent of the element they dwell in, according to their nature. And, air being more extensive than water, and fire than air, it follows that ethereal and igneous Demons will by far surpass their earthly and aqueous fellows, both in stature and might. It would be to no purpose to instance, as an objection, birds which, although inhabitants of the air, a more extensive element than water, are smaller, as a species, than fishes and quadrupeds; for, if birds do indeed travel through the air by means of their wings, they no less belong to the element earth, where they rest; otherwise, some fishes that fly, such as the sea swallow, would have to be classed among aerial animals, which is not.