<table><tr><th>From: </th><th></th></tr><tr><td>Sent:</td><td>Sunday, September 1, 2013 2:41 PM</td></tr><tr><td>To:</td><td>Jeffrey Epstein</td></tr><tr><td>Subject:</td><td>thanks, background and meeting ??</td></tr><tr><td>Attachments:</td><td>Jamaican digit ratio revised letter to the Editor.doc</td></tr></table>

> how can i help

Jeffrey

Many thanks for this offer of help; meanwhile I hope to see you in NYC on a day, place and time of your choosing. I return to work on Monday September 9 and that Thursday the 12th I have an important eye-appointment re a scratched cornea off of my retinal operation (fortunately the latter is coming along nicely). Otherwise ANY day (except Monday lunch) is good.

Meanwhile, I have almost finalized the work-plan: about 4 scientists will measure knee, ankle and foot asymmetry, the first two variables with calipers (twice each) and foot length automatically from a machine. We will Xerox hands, mostly for 2nd:4th digit ratios (see below) but also as partial controls for the foot measurements (Xeroxing introduces small and, alas, non-random biases but the alternative of calipers is far too time-consuming.) Height, weight, age, performance at different times and over different distances, measured to 0.01 seconds, will all be provided by the two local athletic associations.

Key according to the head of one (Bruce James) is to minimize each athlete's time-20 minutes max being measured and hopefully next to no wait time. If so, we could do 100 (70 males, as it turns out and 30 females) in 3 to 4 days and do a (smaller) control sample of non-runners in a day or two.

Bruce tells me the elite runners will do so because he tells them to, while the non-elite will do it for the money (presently $200/head). Usain and Shelley Ann are unlikely mostly because they are apt to be off the island but he says, were they here, they just might be curious (and motivated) to have their knees measured too.

If you have never been to Jamaica before, this might be a nice time. Work will take place at U Tech and U of West Indies, long-legged the two Bulgarian major campuses beauties in and Kingston top European very close scientists to each are other. never Of out course of style, I can Jamaica find us some is also nice famous, hotels if and not while for its scientists, at least for its beauties! (And as your host, I am licensed to carry—as we say in Florida!).

I am attaching a second paper supported by your grant (in press in Human Biology as a letter, due out in October). It is not nearly as important as the symmetry paper, but is actually the reason we ran the races in the first place, previous work having shown that the smaller your second digit compared to your fourth (in both sexes) the greater your endurance in races. We could only use a very weak measure (speed in 200m divided by speed in 100m) because it was impractical on my property to run longer races. In other words we subtracted raw speed (100) from raw speed plus endurance (200). We did indeed find the expected correlation.

But now we have an unusual additional opportunity in the elite sprinters—they run 100, 200, 400 and hurdles in all of the same, so we can easily rank races in terms of endurance vs raw speed and test both 2nd:4th and knee/ankle FA over increasing levels of endurance vs raw speed. So far our FA data says that symmetry is more important the shorter the race while endurance is apparently associated with longer races.

I return to Jersey on the 8th of September. I am hoping to see you soon thereafter.

With warmest best wishes,

Bob