**EXHIBIT 31(ii)**

**Amended Rule 13a-14 or 15d-14 Certification of Mr. Reuben Gamoran**

| I, Reuben Gamoran, Vice President and Chief Financial Officer of Wm. Wrigley Jr. Company, certify that: |
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| 1.                                                                                                      | I have reviewed this Annual Report on Form 10-K/A of Wm. Wrigley Jr.   Company; |
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| 2.                                                                                                      | Based on my   knowledge, this annual report does not contain any untrue statement or omit   to state a material fact necessary to make the statements made, in light of   the circumstances under which such statements were made, not misleading with   respect to the period covered by this annual report; |
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| 3.                                                                                                      | (Intentionally omitted) |
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| 4.                                                                                                      | The registrant’s othercertifying officer and I are responsible for establishing and maintainingdisclosure controls and procedures (as defined in the Securities Exchange ActRules 13a-15(e) and 15d-15(e)) for the registrant and internal control over financialreporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) andhave: |
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|                                                                                                    | (a) | Designed   such disclosure controls and procedures or caused such disclosure controls   and procedures to be designed under our supervision, to ensure that material   information relating to the registrant, including its consolidated   subsidiaries, is made known to us by others within those entities,   particularly during the period in which this report is being prepared; |
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|                                                                                                    | (b) | Designed   such internal control over financial reporting, or caused such internal   control over financial reporting to be designed under our supervision, to   provide reasonable assurance regarding the reliability of financial reporting   and the preparation of financial statements for external purposes in accordance   with the generally accepted accounting principles; |
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|                                                                                                    | (c) | Evaluated   the effectiveness of the registrant’s disclosure controls and procedures and   presented in this report our conclusions about the effectiveness of the   disclosure controls and procedures, as of the end of the period covered by   this report based on such evaluation; and |
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|                                                                                                    | (d) | Disclosed in   this report any change in the registrant’s internal control over financial   reporting that occurred during the registrant’s most recent fiscal quarter   (the registrant’s fourth quarter in the case of an annual report) that has   materially affected, or is reasonably likely to materially affect, the   registrant’s internal control over financial reporting; and; |
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| 5.                                                                                                      | The   registrant’s other certifying officer and I have disclosed, based on our most   recent evaluation of internal control over financial reporting, to the   registrant’s auditors and the audit committee of registrant’s board of   directors (or persons performing the equivalent functions): |
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|                                                                                                    |   | (a) | All significant deficiencies and material weaknesses in the design or   operation of internal control over financial reporting which are reasonably   likely to adversely affect the registrant’s ability to record, process,   summarize and report financial information; and |
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|                                                                                                    |   | (b) | Any fraud, whether or not material, that involves management or other   employees who have a significant role in the registrant’s internal control   over financial reporting. |

Date: February 8, 2005 

|   | /S/REUBEN GAMORAN                                           |
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|   |                                                             |
|   | Reuben Gamoran   Vice President and Chief Financial Officer |