Chap. 175. An Act relative to the shift differentials for employees IN THE NURSING SERVICES IN COUNTY HOSPITALS. Be it enacted, etc., as follows: Persons employed in county hospitals who work the second or third shift in the positions of graduate nurse, head nurse, hospital supervisor, assistant superintendent of nurses and superintendent of nurses shall receive a differential of seven hundred eighty dollars annually; in the position of licensed practical nurse, a differential of three hundred ninety dollars annually; and in the positions of charge attendant, attendant and porter in the nursing service, a differential of two hundred sixty dollars annually. Approved April 16,1969.