











-n ^ 















C 







s 



E 



E 



— .^ 





is 

















"D — .^ "O T3 



.- 







J^ o 





at "O 

 z. c 

 (U o 

 5 " 



wood, ced 

 aged; map 

 derately d 

 3d by bore 

 on the sur 

 was some i 

 iaI actlvit 















:es so that 

 terials wa; 

 hese wood 

 •.r the lowe 

 Diastic rod 



c 



i 



-£ 



^ 



_C "D 



_e: "o 

















1 



E 



i 



> 







1 1 d 



■? Si :| 





C 



c 







c ^ 

 Q.-Q 



i: o 

 -a -^ 



;s test. Red 

 leavily dam 

 ok were mo 

 htly damage 

 ; not found 

 els. There 

 le to bacter 















: rods and ti 

 e wood piei 

 ; plastic mo 

 th wood. T 

 e fitted ove 

 ions of the | 





S 



s 



9! 



0, 5 m 



0) J 



"c 



— o 

 o "- 



'eight-lo; 

 nd pine h 

 sh, and o 

 ir was lig 

 ungi were 

 f the pan 

 amage du 















The plastic 

 inside thes 

 area of ths 

 contact wi 

 pieces wer 

 upper sect 

 tubes. 



1 1 





Q- 



o 



o a X 



J-2 



^ 



6°S 















c 





q; 











s O O u- u. o -o 















U ^ 





■D 









^ 

















a; 







c 

























-o "g fe E 







o 









o 























i2 









^ 

















^ " 5 "^.^ ^ 





H 



2J 









o 

















:5 o o -' . 



S 



D 



>^ 









3 

















S ^ -D s< 



s 



Q^ 



jj . 









-o 

















5^ 8:8^ 



a> 





^ § 

 >^ u 



S. 'e 









§ 



'o 



1 . 



^ ^ 



^ 



jj 



^ 



.J 



^ 





S^ s 3 





























E 

 1 



-6 



"D 





c c * 



_o _o is 



1 



c 



_0) 



5 



c 



_o 



1 



_o 



'5 

 _o 



1 



C 



_o 





f" <u .E ^ .5 



1^ 





"E. c 



% 



% 





.£ S. 



^ ss :; 



ss 



3? 



^ 



^ 



^ 





o 5; ^ > g 



S O J! t: " 



8^ 





E •= 

 U E 







Z 



O 



Z 





1^ E 

 o o 



lO o 0? 

 O CN ^ 



u-) 



"<5- 



'a- 



q 



<3 





0.-°^ g ^ 









— i -o 



CM CM cr> 



^ 



~ 





CO 







1— _Q o o 5 



>- '^ 









c 



























c 



c 























<D 



"O -D 





E 



.E 



J 





















^ 3 



if C . 































-8 o 3 



c 































o 







D. 





















|| 



Q. 



Q. 



Q. 























" t) ° 



Q 



"d; 



"^ 



C 





















54 "c 



III 







C 



_o 





"1 

















'q-u 



"g OJ o 



"D 



!^ 



!^ 



-^ 





8. 

















c — 

 •- CL 





.y 



e" 



e" 



e" 





c 

















O ^ 





'-Ti 



.o 



T3 







o 



















■^ S o 





C 



C 

































'O 





X 























\ 



S 



^ 





\ 

















O m 



3 p 



1 o1 





*" 



























d 































Z 































-J 































u 































z 































'a 







c 

























o 







J> 



















V 



1- 





5 







Q_ 















-o 





'a. 



^ 





5 



^ 



c 













0) 







8 



^ 



.^ 



° 







'c 



_o 









0) OJ 



D. 





j^ 



s 



-g 



_Q 



D) 



0) 







>^ 









C C _i_ 









T) 







^ 



c 





s 



Z 



£ 





o 



qI oT Li_ 



1 



< 



O 



^ 



u 



O 



b- 











































i 















5 







53 



