170 LORD RAYLEIGH ON THE COLOURS OF THIN PLATES. 



Table IV. — Second (Complementary) Series. 



V. 



(24). 



(44). 



(68). 



V. 



(24). 



(44). 



(68). 







3-97 



6-52 



6-46 



5200 



1-28 



1-80 



5-04 



1006-5 



•15 



•06 



•59 



5300 



•91 



2-22 



4-51 



1300 



•22 



1-45 



3-67 



5400 



•64 



2-74 



378 



1500 



•96 



3-32 



5-64 



5600 



•46 



3-77 



2-31 



1604 



1-46 



4-29 



619 



5800 



•77 



4-51 



1-43 



1688 



1-93 



5-03 



6-28 



6000 



1-44 



4-75 



1-53 



1755 



2-30 



5-51 



6-29 



6200 



2'23 



4-41 



2-49 



1846 



2-77 



5-99 



5-77 



6400 



2-89 



3-70 



3-72 



1951 



3-22 



6-26 



4-83 



6600 



3-22 



2-96 



4-61 



2013 



3-48 



6-26 



4-21 



6700 



3-23 



2-65 



475 



2154 



3-84 



5-85 



2-65 



6800 



3-14 



2-40 



4-71 



2328 



3-88 



4-70 



1-02 



6900 



2-97 



2-26 



4-47 



2630 



2-98 



2-08 



•59 



7000 



2-72 



2-20 



4'05 



2927 



1-38 



•57 



3-09 



7100 



2-42 



2-25 



3-55 



3100 



•68 



•75 



4-75 



7200 



211 



2-39 



3-05 



3300 - 



•19 



1-84 



5-87 



7400 



1-52 



2-83 



2-29 



3400 



•16 



2-48 



5-88 



7600 



1-14 



3-36 



1-98 



3500 



•23 



3-35 



5-53 



7800 



1-04 



3-76 



2-44 



3600 



•47 



412 



4-87 



8000 



1-25 



3-96 



3-22 



3800 



1-29 



5-26 



3-04 



8200 



1-63 



3-90 



4-01 



4000 



2-30 



5-59 



1-38 



8400 



2-08 



3'67 



418 



4200 



3-19 



5-04 



•75 



8600 



2-45 



3-35 



3-94 



4400 



3-68 



3'84 



1-44 



8800 



2-65 



3-05 



3-48 



4600 



362 



2-56 



3-03 



9000 



2-63 



2-87 



2-77 



4800 



3-06 



1-61 



4-60 



9200 



2-44 



2-79 



2-42 



4900 



2-64 



1-39 



515 



9400 



215 



2-85 



2-62 



5000 



2-18 



1-35 



5-43 











The curve representative of this series of colours on Newton's diagram is given 

 by the dotted line in the Plate, so far as the tabulated numbers permit. It 

 starts from the point White, and passes rapidly through a whitish-yellow to a 

 very dark red and purple at V = 1006 5. This part of the curve can not be 

 drawn from the tabulated data, — a defect of no great consequence, for the 

 quantity of light being so insignificant, its quality is of little interest. From 

 V = 1300 onwards the curve is pretty well determined. 



It will be seen that the two series of colours are of pretty much the same 

 general character. The green at 5800 in the second series compares favour- 

 ably with the greens of the third and fourth orders in the first series. 



