Common use of Purchase of Option Shares Clause in Contracts

Purchase of Option Shares. Gentlemen: In accordance with my Stock Option Agreement dated as of September 25, 1996 ("Agreement") with HumaScan Inc. (the "Company"), I hereby irrevocably elect to exercise the right to purchase _________ shares of the Company's common stock, par value $.01 per share ("Common Stock"), which are being purchased for investment and not for resale. As payment for my shares, enclosed is (check and complete applicable box[es]): a [personal check] [certified check] [bank check] payable to the order of "HumaScan Inc." in the sum of $_________; confirmation of wire transfer in the amount of $_____________; and/or certificate for ____ shares of the Company's Common Stock, free and clear of any encumbrances, duly endorsed, having a fair market value of $_________. I hereby represent, warrant to, and agree with, the Company that:

Purchase of Option Shares. Gentlemen: In accordance with my Stock Option Agreement dated as of September 25December 1, 1996 ("Agreement") 1998 with HumaScan Pre-Cell solutions, Inc. (the "Company"), I hereby irrevocably elect to exercise the right to purchase _________ shares of the Company's common stock, par value $.01 per share ("Common Stock"), which are being purchased for investment and not for resale. As payment for my shares, enclosed is (check and complete applicable box[es]): [ ] a [personal check] [certified check] [bank check] payable to the order of "HumaScan Global Telecommunication Solutions, Inc." in the sum of $_________; [ ] confirmation of wire transfer in the amount of $_____________; and/or [ ] with the consent of the Company, a certificate for __________ shares of the Company's Common Stock, free and clear of any encumbrances, duly endorsed, having a fair market value of $_________------------. I hereby represent, represent and warrant to, and agree with, the Company that:

Purchase of Option Shares. Gentlemen: In accordance with my Stock Option Agreement dated as of September 25August 12, 1996 1998 ("Agreement") with HumaScan Inc. (the "Company"), I hereby irrevocably elect to exercise the right to purchase _________ shares of the Company's common stock, par value $.01 per share ("Common Stock"), which are being purchased for investment and not for resale. As payment for my shares, enclosed is (check and complete applicable box[es]): / / a [personal check] [certified check] [bank check] payable to the order of "HumaScan Inc." in the sum of $_________; / / confirmation of wire transfer in the amount of $_____________; and/or / / certificate for ____ shares of the Company's Common Stock, free and clear of any encumbrances, duly endorsed, having a fair market value of $_________. I hereby represent, warrant to, and agree with, the Company that: