1 EXHIBIT 23 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the incorporation of our report included in this Form 10-K, into the Company's previously filed Form S-8 Registration Statements No. 2-77846, No. 2-81123, No. 2-95446, No. 33-12633, No. 33-27885, No. 33-45432, No. 0-10824, No. 03-361191, No. 333-30617 and No. 333-15935. ARTHUR ANDERSEN LLP Boston, Massachusetts October 10, 1997