554 Mr. Gr. A. Shakespear on an interference-Method for 



Table A. 









-»j 



&C 















o 



3 co 



co 













s-l 



3 



*- CD 



3 P- 



C3 be 



■jj 











"c ijr 





!h 3 



'o 

 ft 



cL 





in grm 





&f) 3 



.2 S 



a O 



s*f 3 



co C 



bD 

 3 



E 



3 







03 



o 



co 



£.2 



3 



Incr 

 po 



Incre 



to 



n3 

 3 



S-i 



CD 

 ««1 





2500 



-2-1 



•17 



+ 12-5 



+ 1-5 



•66 



-8 



Current "1 

 reversed / 





-1-2 



•13 



+ 11-5 



+ 1-5 



•59 



-6 





6000 



-•3 



•8 



+•8 



4-10 



•55 



-1-1 



j> 





-•2 



•7 



+•7 



4-1-0 



•58 



-1-2 





10500 



-•3 



1-4 



+ •2 



4-M 



•35 



-•3 



M 





-•3 



1-4 



+ •2 



4-M 



•35 



-•2 





21000 











-•6 



+ •8 











» 













-7 



41-0 











These are all taken from a specimen of soft iron. 

 Another specimen showed the following : — 



Table B. 





CO 

















d. 





e 



-t-3 



o 



bD 



■ 





o 



o 





-+3 





bJD 



£ 



"3 3 





cL 



S p- 



*• & 





^o 





§ 

 Hi 



-1-3 



co 

 U 



+a PL. 

 ■4J 



co 



2nd efi 



2nd t.- 



03 g 

 h- 1 



grg 



j-3 



CO 



CO o 



.-2 

 •4 





9,400 



-1 



•19 



+ 3 



1-3 



-1 



+2'5 



•39 



-1-8 



Current j 

 reversed J 





-1 



•18 



4-3 



1-2 



-1 



4-2-5 



•32 



-15 





20,000 



-•8 



•17 



+ •2 



•57 



— 2 



4-2-7 



07 



- -1 



" 



















— 5 



43-8 











The following is from pianoforte-steel results 

 Table C. 





CO 



















s 



+3 



bD 







c 









bJO 



O 



SB 



CD 



CO 



i. 



1st turnin 

 point. 



CD 

 3 



3 

 04 



CD [§. 

 09 P 



£ 5 



1— 1 



"1 A 



grg 



d. 



CO 





4,500 



+ •5 



•51 



-3 



1-9 



+•7 



4-5-5 



•22 



Current 1 

 reversed J 





4- -6 



•52 



-3 



1-9 



+ •2 



+3-4 



•21 





20,000 



4-1 



•56 



-3-5 



2 





+4 





" 





4-M! '61 



1 



-3-0 



2 





4-4 





