|
<br />L~~.~
<br />
<br />~.L
<br />..L
<br />
<br />"
<br />
<br />"
<br />
<br />+
<br />
<br />,L,
<br />
<br />1.1
<br />IF
<br />,
<br />
<br />.1
<br />,I
<br />
<br />'.
<br />
<br />1
<br />r
<br />
<br />. 1
<br />
<br />. . .
<br />
<br />I'
<br />'? f-- 'I
<br />
<br />,
<br />~
<br />
<br />-
<br />..
<br />.1-
<br />
<br />~
<br />. '.aht:
<br />
<br />....l. ., :... . .
<br />
<br />"I" ,..
<br />
<br />-- .. .JiIIIiiIIiIo 'WilrII, .
<br />.. I' - F ~ ;~. 'L CL . .
<br />.. T' . :r': tlu .:Ie'."1 1'1.
<br />I, - ':1' ;!::. ,~_::r:
<br />ll' f j'" ,'.... I'r
<br />. . ". ~.- +__L_
<br />T ',.. . '--I- .",
<br />.f--L.'...tl..-~-Tr .. '.1'
<br />'" t- J.... :f:..f .:C . T
<br />. ~-. 'uC-!_,
<br />.,"+: i.
<br />'~.:.+ . C'
<br />
<br />]=
<br />
<br />" . .
<br />'. .,
<br />
<br />~ '. ,. "
<br />.+ .
<br />.' .-
<br />
<br />-t
<br />
<br />~
<br />. ~.
<br />t. c'
<br />-f-
<br />
<br />r-
<br />LL..
<br />.-j
<br />J -I
<br />
<br />.t
<br />+.
<br />+.
<br />
<br />~
<br />'-
<br />_..
<br />
<br />. . _I
<br />r
<br />
<br />t. Om
<br />
<br />1
<br />
<br />::J...
<br />
<br />-!-
<br />
<br />-+
<br />
<br />L
<br />
<br />+
<br />
<br />,
<br />'r
<br />
<br />r-
<br />
<br />-'
<br />
<br />.-
<br />--: 'j--
<br />
<br />--
<br />+ c. t: ..,.L__
<br />
<br />1--
<br />
<br />.'
<br />
<br />-'-
<br />
<br />T
<br />':1,
<br />j--
<br />
<br />'J
<br />
<br />. 1-;-
<br />
<br />T
<br />
<br />1
<br />
<br />I
<br />
<br />+
<br />
<br />'-~-F' '~~m) I ~-;.r--Jt 1'1 ::!::I'--
<br />, +1,1 i- L I lul' H T I. .
<br />T . f-'.1:. ; J. 1 I.] I i f T. r 1+ .
<br />1 ... ,~:.t I [ .... r
<br />.. + ' ~~. It .'LIII :'r) I r U' +
<br />'ff .c . H;.HJ' .,.1LrtTlfl,L .' ,'el., .
<br />ItrTrrtt:~iT.~'l J1:pcH:[c,-
<br />. t.' ',1-,. f "t'r. 'j" [-'- .
<br />.--j-i.L ,.., T " 1--;"
<br />" . =t{2.1 C ' ..1
<br />,it I iiI"
<br />. j-tJL. 'I'.T J.. -- .1 .
<br />. t1Ijl J _ --I- '
<br />i-Jilj.rl
<br />I- ., .1:, "..1-1.. ~ ,
<br />--I- . -=t~r- Hi.t .
<br />,I 'j' ],.,L.LI"
<br />.. ,fJ-iL;.'.'. 'cf; '--+
<br />. t;'F~ F fJ '=.~rf '. ., ..
<br />. ,,+ITI:!'r--t. I :. +
<br />i"l r--<--, I I -t
<br />.1..,'[ i.1
<br />'5.m;.
<br />"ii T ili"""
<br />-~:r.i:', ,.+
<br />
<br />. -. -- ,-
<br />
<br />cr.~ I
<br />. ~.'1', T., .-t-
<br />. Tfl--j .n:
<br />. juf:r,
<br />" ~t --
<br />~C T. ,.
<br />
<br />I-
<br />,.
<br />1-.
<br />
<br />.1
<br />1
<br />
<br />I
<br />
<br />.'
<br />
<br />-l
<br />
<br />'1
<br />
<br />-
<br />.1c1: :
<br />
<br />[.
<br />.T.
<br />TC'
<br />
<br />--'- .
<br />
<br />.
<br />Figure 28.
<br />(from Worrall, 1902)
<br />
<br />t.
<br />-3: mor-
<br />n +1--
<br />
<br />-I-
<br />+ f-
<br />
<br />-1-.
<br />
<br />-- ,.
<br />
<br />'- 0 w"e.. \~ l:,S- V~sqLA e~
<br />
<br />, ,
<br />
<br />. ,
<br />
<br />-J"
<br />i
<br />
<br />,CL
<br />.T
<br />
<br />IT',C.
<br />.tJJ: ,
<br />. ~~~
<br />
<br />"T
<br />
<br />~r
<br />
<br />..L _Fp.leI:.
<br />..-.,,-
<br />"r ..."""",
<br />
<br />'T
<br />T
<br />
<br />.1.
<br />_I.
<br />. I-'
<br />.1 :
<br />~
<br />
<br />.
<br />H- --
<br />r' ,
<br />"
<br />
<br />:,~.
<br />...b'
<br />
<br />. . . cti.l
<br />
<br />"I
<br />'....l., ",rTf' ~
<br />
<br />_I.
<br />
<br />-,~-I '-
<br />
<br />.-
<br />
<br />_:..
<br />
<br />-..
<br />'. t
<br />
<br />.
<br />
<br />f'
<br />
<br />,
<br />r
<br />
<br />- . - . ~
<br />\ ,.J.
<br />
|