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.
Topic Number 506 - Charitable Contributions You can only deduct charitable contributions if you itemize deductions on Form 1040, Schedule A.pdf, Itemized Deductions. To be deductible, you must make charitable contributions to qualified organizations.