256 



Rutherfurd Photograjihic Measures. 



General Refraction Tables. 



Table of A X *o*. 



Table of B X 106. 







Log. tan. z. 







Log. tan. z. 



1 



0.0 



O.I 



0.2 



0.3 



1 



O.O 



O.I 



0.2 



o-3 



o° 



— .001 



—.003 



— .006 



— .012 



o° 



— .0028 



— .0044 



—.0075 



—.0134 



IO 



— .001 



— .002 



— .OO6 



— .012 



IO 



— .0026 



—.0043 



—.0073 



— .0129 



20 



— .001 



— .002 



— .OO5 



— .Oil 



20 



— .0024 



—.0038 



—.0065 



— .0114 



30 



— .001 



— .002 



— .005 



— .009 



30 



— .002I 



—.0033 



— 0054 



— .0092 



40 



— .001 



— .001 



— .OO4 



— .007 



40 



— .OOl6 



— .0025 



— .0040 



— .0069 



50 



— .001 



— .001 



—.003 



— .005 



50 



—.0013 



— .0018 



— .0028 



— 0045 



60 



.000 



— .001 



— .002 



—.003 



60 



— .0009 



— .0012 



—.0018 



— .0027 



70 



.000 



.000 



— .OOI 



— .OOI 



70 



— .0006 



— .0007 



— .0009 



—.0013 



80 



.000 



.000 



.000 



.000 



80 



— .0002 



—.0003 



— .0004 



— .0006 



90 



.000 



.000 



.000 



.000 



90 



.OOOO 



• OOOO 



.OOOO 



.OOOO 



IOO 



.000 



.000 



.000 



.000 



IOO 



-f-.0002 



4-. 0003 



4-. 0004 



4-. 0006 



no 



.000 



.000 



— .OOI 



— .OOI 



no 



-|— OOO6 



4-. 0007 



4-.ooo9 



+.0013 



120 



.000 



— .001 



— .002 



—.003 



120 



4- OOO9 



4-. 0012 



4-.ooi8 



4~. 0027 



130 



— .001 



— .001 



—.003 



— .005 



130 



4..OOI3 



4-.ooi8 



4-.0028 



4-. 0045 



140 



— .001 



— .001 



— .004 



— .007 



140 



4-. 0016 



4-.0025 



4-. 0040 



4-.0069 



150 



— .001 



— .002 



—.005 



— .009 



15° 



4-.002I 



+•0033 



4-. 0054 



4-- 0092 



160 



— .001 



— .002 



— .005 



— .011 



160 



-(-•0024 



4-.0038 



4- 0065 



4-.0114 



170 



— .001 



— .002 



— .006 



— .012 



170 



-j-. 0026 



+•0043 



+.0073 



4-. 0129 



180 



— .001 



—.003 



— .006 



— .012 



180 



-j-. 0028 



+.0044 



+.0075 



+.0134 



190 



— .001 



— .002 



— .006 



— .012 



190 



4-. 0026 



+.0043 



4-.0073 



4-. 0129 



200 



— .001 



— .002 



— .005 



— .Oil 



200 



4-.0024 



+.0038 



4-. 0065 



4-.0114 



210 



— .001 



— .002 



— .005 



— .009 • 



210 



4-. 002 1 



+.0033 



4-.0054 



4-. 0092 



220 



— .001 



— .001 



— .004 



— .007 



220 



4-.ooi6 



4-.0025 



4-0040 



4-0069 



230 



— .001 



— .001 



—.003 



— 005 



230 



4-.0013 



4-.ooi8 



4-.0028 



4-. 0045 



240 



.000 



— .001 



— .002 



— .C03 



240 



+.0009 



4-. 0012 



4-.ooi8 



4-0027 



250 



.000 



.000 



— .001 



— .OOI 



250 



4~. 0006 



4~. 0007 



4-. 0009 



4-.0013 



260 



.000 



.000 



.000 



.000 



260 



4~. 0002 



4-. 0003 



4-. 0004 



4-.ooo6 



270 



.000 



.000 



.000 



.000 



270 



.0000 



.OOOO 



.OOOO 



.OOOO 



280 



.000 



.000 



.000 



.000 



280 



— .0002 



—.0003 



— .0004 



— .0006 



290 



.000 



.000 



— .OOI 



— .OOI 



290 



— .0006 



— .0007 



— .0009 



—.0013 



300 



.000 



— OOI 



— .002 



—.003 



300 



— .0009 



— .0012 



— .0018 



— .0027 



310 



— .001 



— .001 



—.003 



— .005 



310 



—.0013 



— .0018 



— .0028 



—.0045 



320 



— .001 



— .OOI 



— .004 



— .007 



320 



— .0016 



— .0025 



— 0040 



— .0069 



330 



— .001 



— .002 



— .005 



— .009 



33o 



— .0021 



—.0033 



—.0054 



— .0092 



340 



— .001 



— .002 



— .005 



— .Oil 



34o 



— .0024 



—.0038 



— .0065 



— .0114 



350 



— .001 



— .002 



— .006 



— .012 



35o 



—.0026 



—.0043 



—.0073 



— .0129 



