

<PAGE>


                                                                     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 Statement File No. 33-30092.



                                       /s/ Arthur Andersen LLP

Philadelphia, Pa.
January 27, 1999

