%PDF-1.6
%
1 0 obj
<>
endobj
2 0 obj
<>stream
2011-05-23T00:19:45-07:00
2011-05-23T00:19:45-07:00
2011-05-23T00:19:45-07:00
PScript5.dll Version 5.2.2
uuid:e7e173e4-1dd1-11b2-0a00-0000085afaff
uuid:e7e19d3a-1dd1-11b2-0a00-0df6f85bfaff
application/pdf
Microsoft Word - Anderson.express
eguise
Acrobat Distiller 8.0.0 (Windows)
endstream
endobj
5 0 obj
<>
endobj
3 0 obj
<>
endobj
7 0 obj
<>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageC/ImageI]/XObject<>>>/Rotate 0/Type/Page>>
endobj
8 0 obj
<>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageC/ImageI]/XObject<>>>/Rotate 0/Type/Page>>
endobj
9 0 obj
<>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageC/ImageI]/XObject<>>>/Rotate 0/Type/Page>>
endobj
10 0 obj
<>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageC/ImageI]/XObject<>>>/Rotate 0/Type/Page>>
endobj
11 0 obj
<>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageC/ImageI]/XObject<>>>/Rotate 0/Type/Page>>
endobj
12 0 obj
<>/ProcSet[/PDF/Text/ImageC]/XObject<>>>/Rotate 0/Type/Page>>
endobj
13 0 obj
<>/ProcSet[/PDF/Text/ImageC]/XObject<>>>/Rotate 0/Type/Page>>
endobj
42 0 obj
[45 0 R]
endobj
43 0 obj
<>stream
q
336 0 0 201.6000061 0 0 cm
/Im0 Do
Q
BT
/RelativeColorimetric ri
/T1_0 1 Tf
0 10 -10 0 588 445.44487 Tm
( on May 23, 2011)Tj
0 0 1 rg
-9.50198 0 Td
(www.sciencemag.org)Tj
0 g
-8.11398 0 Td
(Downloaded from )Tj
ET
endstream
endobj
44 0 obj
<>/Filter/DCTDecode/Height 840/ImageName/Fig#202#20BIRI_HiRes_Flat.jpg/Length 77661/Name/Fig#202#20BIRI_HiRes_Flat.jpg/Subtype/Image/Type/XObject/Width 1400>>stream
Adobe d
Hx"
s !1AQa"q2B#R3b$r%C4Scs5D'6Tdt&
EFVU(eufv7GWgw8HXhx)9IYiy*:JZjz m !1AQa"q2#BRbr3$4CS%cs5DT
&6E'dtU7()euFVfvGWgw8HXhx9IYiy*:JZjz ? 6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lU g4a cY 3?0 UgڿȞK?4. >O>DWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWg ٟ чg3 h ƱWş?j u '"y, W <]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf]6lUٳf] fG F5 ϳ? _~h ] }|GR_cOvlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛vlٱWf͛v{ } Mx= > ?k|Y )v 1_y'K ϑ