The Great Gatsby

From the text:

‘I’d like to know who he is and what he does,’ insisted Tom. ‘And I think I’ll make a point of finding out.’
‘I can tell you right now,’ she answered. ‘He owned some drug stores, a lot of drug stores. He built them up himself.’

____________________________________________________________________________________

‘I found out what your ‘drug stores’ were.’ He turned to us and spoke rapidly. ‘He and this Wolfshiem bought up a
lot of side-street drug stores here and in Chicago and sold grain alcohol over the counter. That’s one of his little stunts. I picked him for a bootlegger the first time I saw him and I wasn’t far wrong.’