Adrenal Gland Cancer (Pheochromocytoma) in Cats. Pheochromocytoma in Cats. A pheochromocytoma is a type of adrenal gland tumor which causes the gland to make too much of some of the hormones. This can cause an increase in heart rate, blood pressure, and breathing rate.
Shell company. A shell company is a company that exists but does not actually do any business or have any assets. The most interesting type of shell company (to investors) is one that has a listing. This is a listed shell, and is almost always what is meant by a reference to a shell in an investment context.
The History of Shell Oil Company. The history of Shell Oil Company is best told through the efforts of its people-people whose imagination, talent, and hard work have produced many significant achievements. Many of these achievements have been historical firsts and stand today as milestones in the petroleum industry. 1912 - 1941. Early Milestones.