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.
Political donations. Home Â» Tax planning guide Â» Section 2 â Individuals Â» Political donations. For 2015, the credit is calculated as follows: 75% of the first $400, 50% on the next $350 and 33 1/3% of any contribution over $750, up to $1,275.