Exhibit 4.2 FORM OF SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement, dated as of the date of acceptance set forth below, is between PSIVIDA LIMITED, an Australian company (the "Company"), and the undersigned (the "Buyer"). The Company...Securities Purchase Agreement • March 28th, 2006 • pSivida LTD • Laboratory analytical instruments
Exhibit 4.3 THIS WARRANT AND ANY SHARES ISSUABLE UPON EXERCISE OF THIS WARRANT HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR THE SECURITIES LAWS OF ANY STATE AND MAY NOT BE SOLD OR OFFERED FOR SALE IN THE ABSENCE OF AN...pSivida LTD • March 28th, 2006 • Laboratory analytical instruments • New York
