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.
Any donation to a political party, campaign, or action committee is non-deductible. Other non-deductible contributions are those to individual people, labor unions, business associations, for-profit schools, for-profit hospitals, foreign governments, and fees paid to associations or state or municipal governments.
Youâll find the official word from the IRS in IRS Publication 529 [Miscellaneous Deductions]: âYou cannot deduct contributions made to a political candidate, a campaign committee, or a newsletter fund.