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.
Add that to contributions to political parties, political action committees, and congressional candidates, and the total rises to over $4 billion. That figure tops many small countriesâ GDP. You may be wondering if you can deduct any contributions you made on this yearâs tax returns.