REFRACTION 



49 



t{°C) 

 Mm)\ -20 







10 



20 



30 



40 



50 



75 



100 



150 



200 



250 



300 



350 



400 



450 



500 



600 



700 



800 



900 



1,000 



1,500 



2,000 



-4.00 



-18 



-16 



-14 



-12 



Table 1 



-10 



-6 



-2 



-0.40 



-f3.20 



6.80 



10.4 



14.00 



17.6 



21.2 



24.8 



28.4 



±0 



32.0 



Hit) 



0.0 



32.8 



65.6 



98.4 



131.2 



164.0 



248.1 



328.1 



492.1 



656.2 



820.2 



984.3 



1,148.0 



1.312.0 



1,476.0 



1.640.0 



1.969.0 



2,297.0 



2.625.0 



2,953.0 



3.281.0 



4.921.0 



6,562.0- 



\Hit)' 



tCF) 







10 



20 



30 



40 



50 



75 



100 



150 



200 



250 



300 



350 



400 



4.50 



500 



600 



700 



800 



900 



1,000 



1,500 



2,000 



32.0 



Table 1 (Continued) 



10 



12 



14 



16 



18 



35.6 



39.2 



42.8 



46.4 



50.0 



53.6 



57.2 



60.1 



64.4 



20 



h{it) 



0.0 



32.8 



65.6 



98.4 



131.2 



164.0 



248.1 



328.1 



492.1 



656.2 



820.2 



984.3 



1,148.0 



1,312.0 



1,476.0 



1,640.0 



1,969.0 



2,297.0 



2.625.0 



2.953.0 



3.281.0 



4,921.0 



6,562.0 



68.0 



;i(ft)' 



