Exhibit 3.19(a)

                         CERTIFICATE OF INCORPORATION

                                      OF

                             AYRSHIRE LAND COMPANY

     1. The name of the corporation is:

                             Ayrshire Land Company

     2. The address of its registered office in the State of Delaware is
Corporation Trust Center, 1209 Orange Street, in the City of Wilmington, County
of New Castle. The name of its registered agent at such address is The
Corporation Trust Company.

     3. The nature of the business or purposes to be conducted or promoted is to
engage in any lawful act or activity for which corporations may be organized
under the General Corporation Law of Delaware.

     4. The total number of shares of stock which the corporation shall have
authority to issue is One Thousand (1,000) and the par value of each of such
shares shall be One Hundred Dollars ($100.00) amounting in the aggregate to One
Hundred Thousand Dollars ($100,000.00).

     5. The board of directors is authorized to make, alter or repeal the
by-laws of the corporation. Election of directors need not be by written
ballot.

     6. To the fullest extent permitted by the General Corporation Law of the
State of Delaware, as the same exists or may hereafter be amended, a director of
the Corporation shall not be liable to the Corporation or its stockholders for
monetary damages for breach of fiduciary duty as director. Any repeal or
modification of this Article shall not adversely affect any right or protection
of an existing director at the time of such repeal or modification.

     7. The name and mailing address of the incorporator is:

                 Raymond J. Cooke
                 AMAX Inc.
                 AMAX Center
                 Greenwich, CT 06830

 
     I, THE UNDERSIGNED, being the incorporator hereinbefore named, for the
purpose of forming a corporation pursuant to the General Corporation Law of
Delaware, do make this certificate, hereby declaring and certifying that this is
my act and deed and the facts herein stated are true, and accordingly have
hereunto set my hand this 17th day of June, 1987.


                                              /s/ Raymond J. Cooke
                                             ---------------------------
                                                  Raymond J. Cooke