Exhibit 23.1


                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent  public  accountants,  we hereby consent to the use of our report
dated  February 19, 1999 (except with respect to the matter  disclosed  in Note
7(b) as to which the date is April 15, 1999) included in this Form 10-K into the
Company's  previously filed Registration  Statement File No.'s 33-3898,  33-3900
and 33-3902.


                                                         /s/ Arthur Andersen LLP


Boston, Massachusetts
April 15, 1999


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