Saliva is a watery substance formed in the mouths of animals, secreted by the salivary glands. Human saliva comprises 99.5% water, plus electrolytes, mucus, white blood cells, epithelial cells (which can be used to extract DNA), glycoproteins, enzymes (such as amylase and lipase), antimicrobial agents such as secretory IgA and lysozyme.
Take it on the arches does not mean simply Leave. It means Walk away. If Travis continues to break the chops of his dispatcher, he will not be driving a cab tonight. He will be walking home. I had no idea it was such an obscure term. It is dated, to be sure.
A Gothic arch is a sharp-pointed arch, formed of two arc segments (parts of a circle). The lower part of the arch is parallel sided, up to the level of the springing points. Quinto acuta arches. The Gothic arch evolved from the round-topped Roman arch. It has two advantages; one is obvious, in that a Gothic arch reaches higher for a given width. Another advantage is less visible. A major consideration when building a masonry arch is the amount of horizontal thrust that it produces on its foundations.