the doctrine of the numerist

He has a deathly fear of crocodiles.

But I sez, “Nobody can dive into deeper depths than I have doven to-day.” / “The ocean?” sez she. / “Oceans of anxiety,” sez I, “rivers of grief.”

Demosponges have siliceous spicules and a network of fibrous protein, spongir, that is similar to collagen. The demosponges are the source of natural household sponges, which are made by soaking dead sponges in shallow water until all the cellular material has decayed, leaving the spongin network behind.