ON GRAPHIC METHODS IN MECHANICAL SCIENCE. 477 



• S . . . s 



^ C3 71 M Tv O 



° g 



cn cS 



C cS 



60 



I" & & bb So fe bo ?o bo bc bo.S .S ° S .a .3 ro .5 ^0.5 bc.S ^.s ^ ^ a I'' ^ -« ^^ 



llllglllglla |i||a|||| J lias in fin j | 



o 



7ooSSooooSoo--iooooco ccocooQOoocoooooX' ccQOoocom 0090005500 00 00 

 00 or 00 00 CO 00 00 S 3 S S 00 00 CO 00 OD 00 00 CO 00 00 00 00 00 00 00 00 00 oc 00 00 00 00 



^^,_|r-(rH.-li-li-IOOr-lTHi-( rHr-li-H^rtr-li-li-li-H ■-HrH.-l.-l^ i-<rt>-lrHi-l t-H .-H 



t-2^ocop.^oo .^-^^ oggg "=^00 ^sSSoKH- ^ -^^ :: t: 



oi ^ bo 



bo .\.^... >%..=» ^a 



■ c ;; t, f^ 



W bo oi ^ 



■? • • W W g .3 2 



bO be M be bo g bo . M g'S g) bo 00 bO bo 



a c a S o c S S . ci c a a a a a . a a a _a .g .g .g .3 m :g ^ . .a _a _a _a _c 



■bo'bb'bc'bo'ob'bo'bc'bb g 'bo'sb'S) ■bo'bb'bb'bo § ■boU'bo'bo ■bo'bc'bp'bp g^r^gbpbOM M ^ 



a 

 o 



llaa a saa||»a-g si^^a^ofsi^ t^tt> t^t^t 



a 



'^, f^ >, >, >^ >, >^ -^^ o >^ ?a g>^2 "S >;>^ . i; ^ ^ b-f 



-c ■ • • s • • • • ^ ■ • • ■ ?, 



a 



WJ - 



a> a 



(U 



X 



■ o 



b. . . .a „ -s^ • • -la • • -SI !> 



s .= a (U S 2 bcW bo.^ be <u f" o o cc m « 



•5 ■- ?■ « .^^ t' .2 O -r ^ti I' . td a ,„ . . rS .5 <" o " "> • e a a 



cW.S ^ -Srta^ c^bo'SSi^ a a -tS 60 a ^"S^ So hb to 



T3 « W T! bb g g>-H W o W g S'il .>; i^ i ^ o CO a I < 5° ° S a a c 



t, a c8 » ^' a) in >- ., or, a .2 5 s o 03 rrt -cJ o •- ' sn o c« Tl o T3 a a :.-' ^ ,x .5 — • 



"^'CasBaSacrtSboS a a a o S *=" a -r^ > Sf m a o k fe <u U 



o p 



P5 p:: 



00 : 



^il^^^o-s^?io1^^s^|'g1ll'B|^ 1^ alalia 



s o |'-3'3'B'g-»2;2« l^ft ^ K^ g a a o a a a-|^ a5 a".s g^ g=i s. s s 



