1 2 3 4 1 _ _ _ _ 2 _ _ _ _ 3 _ _ _ _ 4 _ _ _ _ ACROSS 1) a course of conduct 2) a fit of shivering or shaking 3) a writing implement with a point from which ink flows 4) an enzyme found in mammals that can catalyze the deamination of adenosine into inosine and ammonia DOWN 1) an informal term for a father; probably derived from baby talk 2) people who are old collectively 3) tropical american prickly pear of jamaica 4) english pianist (1890-1965) ** Scroll down for solution. ** Are you sure you want to peek? path ague pens adas