The rules for substantiating charitable deductions are black and white, but taxpayers often mess up.

FORBES: Tax Court Loss For Ferret Rescuer

But substantiating such a theory will require more information about prehistoric climate and agriculture, and more archaeological evidence.

ECONOMIST: Anthropophagy

Mr. Benson broke the news to staff at a meeting on Wednesday, substantiating rumors most of them had heard about for weeks.

WSJ: Steakhouse to Serve Its Final Sirloin

As far as I can tell, Mr. Poehm has absolutely no way of substantiating any of the data represented on his website.

FORBES: Let's Have a Party!

Making this point and substantiating it with hard data is important for better communication with economic decision makers and for better policy integration.

FORBES: The Future of Life On Earth: Part Two Of The Discussion

And when he ran the profile he had assembled through a database of known collagens, he found it was most similar to the versions found in chickens and ostriches substantiating Dr Schweitzer's antibody-based hunch.

ECONOMIST: Some 68m-year-old evidence that birds are dinosaurs