110 
PE TROLOG Y: CLARKE A ND WA SHING TO N 
Proc. 
N. A. S. 
C^C0<M^O«3C:air-ic0Or-(O 
CO'^LOiOIXM'-^^OOOO 
y-* 01(MiO'*0'-it>cOa500CQO'-H 
OOcD(^qcOCOlOCOTt^OOOOO 
O COCOt^fMiOCOiOtQcDcOT-iOO 
0^(NCOTt<-*cOCOr-HOOOO 
Ci 
COiOfOCOr^COCOCQr-iOOOO 
lO T— I 
w 
O (X) CO C5 CD O O ^ CO (M O i-t 
(V 00 
S 00 CO CO ^ »0 CO CO r-i o O O O 
g 
W OiCO'OOOcO'OT-HCO'-iOf^OlLO 
O lOrtH^OO'-iCOrHail-^iiOCq.-iO 
S ococ<joq(Mcococoooooo 
^ CO 
t3 
c 
W 't' '^f r-i (M lO O (M CO lO lO O 
12 O Oq CO rt^ 00 <M t> 00 00 I><M ,-1 
O Tf CO CO CO CO CO O O O O O 
' CO I— I 
w 
o 
CO 00 lO 1-1 CO O (M ^ ^ <M O O 
OOOCO(N(MCOr-llOt^COi-(T-lrH 
> Ol CO CO CO CO ^ CO O T-t o O O 
< lO ^ 
o:)':t^cii>i>cocoi>a5'^'^i>-^ 
_^ 00 >0 CO lO tJ^ lO ^ i-i CO CO O CO 

COiO(MCO'^^-^'*'*'-t'-tOOO 
OcOO-^OiiMOCOcOiOc^T-icO 
1^ COi-i-^Ot^GSIXMrt^t^rHOO 
CqiOiMCOCOCOCOCO'-iOOOO 
CO r-t 
OO^I>Or-iiO00^t>(M'*00 
^ r-l OO »0 00 r}^ lO CO 05 (M r-( 
ajcoco^Tt<»oco<M'-HOooo 
TfCqt-t^^t^COO-^COCOOOTH 
^ x^'-icocoa5i>-^(MoocqoT-H 
05»OCOCOCOTtiCOCO'-<0000 
lO 1-1 
8 
c3 
c3 
.5 
O v> „ 
Vh 1) 5 " 
C c« c ^ 
-si's 
03 <^ « 
xn 
a» 
CO 
c3 
CO 
CO 
o 
bJO 
8 
8 
1^1 
00 Oi O rH (M CO 
• §5 
M (U 03 
O) w j5 
r^-^ "rf CD 1^ 
^COt- 
o • S 
J w< (U '^r O 
g3 
_ bX) bo W) 
8 
a (A 
O -r. 
^ o3 Sj 
I g 
rJ »H t-H _r) iJ- ^ .L 
(N CO »0 CO l> 
