UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                             Washington, DC  20549

                                 SCHEDULE 13G
                   Under the Securities Exchange Act of 1934
                             (Amendment No. ___)*

                                Clinicor, Inc.
                           -------------------------
                               (Name of Issuer)

                    Common Stock, par value $.001 per share
                           -------------------------
                        (Title of Class of Securities)

                                   18726M106
                           -------------------------
                                (CUSIP Number)


*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).

Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

                       Rule 13d-1(b)
               -----               

                 X     Rule 13d-1(c)
               -----               

                       Rule 13d-1(d)
               -----               

                               Page 1 of 6 pages

 
CUSIP No.  18726M106
- --------------------------------------------------------------------------------

1.   Name of Reporting Person and S.S. or I.R.S. Identification Number

     A. H. Rogers
- --------------------------------------------------------------------------------

2.   Check the Appropriate Row if a Member of a Group

     a.   N/A

     b.   N/A
- --------------------------------------------------------------------------------

3.   SEC Use Only

- --------------------------------------------------------------------------------

4.   Citizenship or Place of Organization

     U. S. citizen
- --------------------------------------------------------------------------------

     Number of Shares Beneficially Owned by Each Reporting Person With:

5.   Sole Voting Power            226,916 shares (see Item 4)

6.   Shared Voting Power          N/A

7.   Sole Dispositive Power       226,916 shares (see Item 4)

8.   Shared Dispositive Power     N/A
- --------------------------------------------------------------------------------

9.   Aggregate Amount Beneficially Owned by Each Reporting Person

     226,916 shares (see Item 4)
- --------------------------------------------------------------------------------

10.  Check if the Aggregate Amount in Row (9) Excludes Certain Shares

     N/A
- --------------------------------------------------------------------------------

                               Page 2 of 6 pages

 
11.  Percent of Class Represented by Amount in Row (9)

     5.4%
- --------------------------------------------------------------------------------

12.  Type of Reporting Person

     IN
- --------------------------------------------------------------------------------

                               Page 3 of 6 pages

 
Item 1(a).     Name of Issuer:

               Clinicor, Inc.

Item 1(b).     Address of Issuer's Principal Executive Offices:

               1717 West Sixth Street, Suite 400
               Austin, Texas  78703

Item 2(a).     Name of Person Filing:

               A. H. Rogers

Item 2(b).     Address of Principal Business Office:

               17 South Briar Hollow Lane, Suite 304
               Houston, Texas  77027

Item 2(c).     Citizenship/State of Organization:

               U.S. citizen

Item 2(d).     Title of Class of Securities:

               Common Stock, par value $.001 per share

Item 2(e).     CUSIP Number:

               18726M106

Item 3.        Filing pursuant to Rule 13d-1(b):

               N/A

Item 4.        Ownership:

               (a)  Amount Beneficially Owned:  226,916 shares

               (b)  Percent of Class:  5.4%

               (c)  Number of shares as to which such person has:

                    (i)   sole power to vote or direct the vote:  226,916 shares

                    (ii)  shared power to vote or to direct the vote:  N/A

                    (iii) sole power to dispose or to direct the disposition of:
                          226,916 shares

                               Page 4 of 6 pages

 
                    (iv)  shared power to dispose or to direct the disposition
                          of: N/A

               Note: The 226,916 shares of Common Stock beneficially owned by
               Mr. Rogers include 48,902 shares held by The Tennant Co. MPP Plan
               FBO A. H. Rogers, 30,568 shares held by The Tennant Co. PSP Plan
               FBO A. H. Rogers and 26,175 shares held by A. H. Rogers IRA, as
               to which Mr. Rogers has voting and dispositive power.

Item 5.        Ownership of Five Percent or Less of a Class:

               N/A

Item 6.        Ownership of More than Five Percent on Behalf of Another Person:

               N/A

Item 7.        Identification and Classification of the Subsidiary Which
               Acquired the Security Being Reported on By the Parent Holding
               Company:

               N/A

Item 8.        Identification and Classification of Members of the Group:

               N/A

Item 9.        Notice of Dissolution of Group:

               N/A

Item 10.       Certification:

               By signing below I certify that, to the best of my knowledge and
belief, the securities referred to above were not acquired and are not held for
the purpose of or with the effect of changing or influencing the control of the
issuer of the securities and were not acquired and are not held in connection
with or as a participant in any transaction having that purpose or effect.

                               Page 5 of 6 pages

 
                                   SIGNATURE

     After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this Section 13G is true, complete and
correct.


Dated:  February 3, 1999                /s/ A. H. Rogers
       --------------------             ----------------------------------------
                                        A. H. Rogers

                               Page 6 of 6 pages