Exhibit 23.5 

Consent of Ernst & Young LLP, Independent Auditors 

   
    We consent to the reference to our firm under the caption "Experts" and to
the use of our report dated May 19, 1994, relating to the combined financial
statements of Maryland Medical Laboratory, Inc. and affiliates (not presented
separately herein) in Amendment No. 2 to the Registration Statement on Form S-1
and related Prospectus of Corning Clinical Laboratories Inc. dated November 25,
1996.

/s/ Ernst & Young LLP 
Ernst & Young LLP
Baltimore, Maryland 
November 22, 1996 
    

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