Collier's New Encyclopedia

A complete general encyclopedia of 1921 — the world as it was understood just after the Great War, from Aachen to Zwingli, across twelve volumes and six thousand pages.

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Broccoli

a late variety of the and Hartford railroad; 20 miles S. of in the flower and leaves. The part used is the succulent flower stalks. prehistoric structures in Scotland resembling low, circular, roofless towers, with walls of great thickness, built of unhewn stones and without lime or cement, and entered by a narrow passage. There are small chambers in the thickness of the wall, accessible only from the interior. These structures were evidently built for defense. They are most the interior. These structures were evinorthern counties. dently built for defense. They are most numerous in Orkney, Shetland, and the northern counties. BROCHANTITE (from BROCHANT DE cent mineral, with its hardness, 3.5-4; its sp. gr., 3.78-3.90; its luster vitreous, pearly, on one cleavage face. Composition: Sulphuric acid, 15.8-19.71; oxide of copper, 62.626-69.1; oxide of zinc, 0-8.181; oxide of lead, 1.03-1.05. It is found in all portions of the world. It can be produced artificially. makes two varieties (1) Ordinary found in all portions of the world. It can be produced artificially. Dana

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