Matthew, you have shown some interesting data which I'm not sure I totally agree with. However, what's amusing here, is the unintended irony, of the responses. In short, perhaps the best defense against white people being smarter than black people are the inane responses you've got from PC white people who, rather than address the issue head on, simply call you a racist or stereotype you for stereotyping others. These folks are DUMB.
Here's some points to consider about the traditional brain size data. I'm not saying your data is necessarily wrong, but let me pose a few questions which actually address some inconsistencies of the research rather than call you names. Einstein's brain was apparently of average size. In studying his brain recently they found that he had more -- for lack of the technical term -- folds in certain parts of his brain. It seems like brain size isn't the only indicator of intelligence. Which personally is sad, because I have a Wolly Mammothed size cranium myself, so I'd like it to be true in a way... Also because of within race differences such as in white groups such as Jews IQ 115 and non Jews 100 it makes it problematic. That is as large a gap as between blacks and whites. I find it hard to believe that such a significant gap is caused simply by brain size, when again Einstein probably had a smaller brain than, ah me, for instance... In short, there are large within race gaps, which make gaps between races seem less relevant. I also have heard, not positive about this, that there is a subgroup of the Chinese population that has much higher IQs than the average Chinese person. Again, within race and specific group differences seem to indicate it's not just race that must create average scoring differences. What do you think about these points???
the correlation between brain size and intelligence is not particularly large.
the correlation between brain size and intelligence, corrected for body size, is better.
the correlation between the amount grey matter and intelligence is much better.
there are also positive correlations for nerve insulation and lower glucose metabolism (better and more efficient functioning).
brain size, amount of grey matter, insulation, and glucose usage are all experimentally proven to be under high genetic control.
the physical properties of the brain directly affect intelligence, and are themselves under genetic control.