Lead flashing was commonly used on chimneys, around other roof penetrations such as vent pipes, and roof junctions, such as valleys. It is still used for this, but is less common because of its cost, and the availability of alternatives. Modern alternatives: pvc, butyl rubber etc. are often less durable.
Granulocytes, specifically neutrophils, help the body fight bacterial infections. The number of granulocytes in the body usually increases when there is a serious infection. People with a lower number of granulocytes are more likely to develop bad infections more often.
Neutrophils, eosinophils, and basophils are all granulocytes because they contain granules. The granules in a neutrophil are small, numerous, and are stained a light-pink to bluish-purple, neutral color. The cytoplasm of a neutrophil is light pink. When a person is fighting infection, the granules may be dark colored.