Language Planning for a New Order 485 tion during several centuries has not made the speech of New England unintelligible to people in Old England, or vice versa. Experience should therefore encourage, rather than discourage, us in pressing for an international auxiliary. The primary desiderata of an international auxiliary are two First, it must be an efficient instrument of communication, embracing both the simple needs of everyday life and the more exacting ones of techni- cal discussion Secondly, it must be easy to learn, whatever the home language of the beginner may be. To be an efficient instrument of communication it must be free from ambiguities and uncertainties arising from grammatical usage or verbal definition The vocabulary must be free from duplication and unnecessary over-lapping It must shun all that is of purely regional importance The design of it can turn for guidance to two diverse sources, the pioneer-work of Ogden, and recognition of defects which vocabularies of hitherto con- structed languages share with natural speech. We can best see what characteristics make it easy to learn a constructed language if we first ask what features of natural languages create difficulties for the be- ginner. Difficulties may arise from a variety of causes: structural irregularities, grammatical complexities of small or no functional value, an abundance of separate words not essential for communication, un- familianty with word-forms, difficulty of pronunciation or auditory recognition of certain sounds or sound-groups, and finally conventions of script Progress of comparative linguistics and crmasm provoked by suc- cessive projects for a constructed auxiliary have considerably clarified these difficulties during the past fifty years Consequently there is a wide field of general agreement concerning the essential features of satisfactory design Though several interlaaguages still claim a handful of enthusiastic supporters, it is probably true to say that most people who now advocate an artificial language approach the prospect with a ready ear for new proposals. The plethora of projects touched on in the preceding chapter should not make us despair of unanimity On the contrary, failure brings us nearer to accord As Jespersen remarks in the beginning of his book on his own constructed auxiliary (NomalY All recent attempts show an unmistakable family likeness, and may be termed dialects of one and the same type of international language This shows that just as bicycles and typewriters are now nearly all of the same type, which was not the case with the earlier makes, we are now in the matter of interlanguage approaching the time when one standard