Authorizing the creation of a State Debt in the amount of $500,000, the proceeds to be used as a grant to the Board of Directors of Melwood Horticultural Training Center, Inc. for the planning, design, construction, and capital equipping of the Melwood Nanjemoy Recreation Center, located in Nanjemoy; requiring the grantee to grant and convey a specified easement to the Maryland Historical Trust; providing for disbursement of the loan proceeds, subject to a requirement that the grantee provide and expend a matching fund; etc.