Delegates from Australian employers who were guests yesterday of the Boston chamber of commerce, together with officers of the chamber. The Australians are making a tour of the United States studying working conditions and methods used in American manufacturing plants. Left to right: R.J. Phillips, U.S. department of Foreign and Domestic Commerce; Andrew J. Peters, president of the Boston chamber; A.J. McNeil, managing director of the Millers Timber and Trading Co., Ltd., Perth; Archibald McInnes, former president of the Trades and Labor Council in Adelaide; and M.D. Liming, secretary of the Boston chamber.