haversian spaces-spaces in bone formed by the enlargement of haversian canals. haversian system-a central canal containing capillaries and the concentric osseous lamellae around it occurring in compact bone.
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1. If your goal is a legitimate tax deduction, then you must be giving to a qualified organization. Also, you cannot deduct contributions made to specific individuals, political organizations and candidates. See IRS Publication 526, Charitable Contributions, for rules on what constitutes a qualified organization. 2.