(Table III.) Ivory's mean Astronomical Refractions. (Table IV. 9 











Log. 



diff. for 







Thermometei 



1 Barometer. 



Alt. 



Zen. 

 (list. 



Mean. 

 Refract. 



Loga- 

 rithm. 









Zen. 

 (list. 





1 



1' ol 



1" of 



Alt. 



T. 



diff,foi 



B. 



diff.for 









Z. 



Z.D 



Refn. 







l'Z.D 



l'Z.D. 



o / 



o / 



/ / 









o ' 



o // 











05.0C 



85.00 



9.53.96 



2.77376 







10.0C 



) 80.00 



.03 









55 



05 



10.02.13 



2.77969 



J19 



73 



09. 0C 



) 81.00 



.04 





.04 



\ 



5C 



10 



10.52 



2.78569 



120 



72 



08.01 



82.00 



.05 





.05 





45 



15 



19.11 



2.79176 



121 



71 



31 



82.30 



.06 





.08 





40 



20 



27.90 



2.79789 



123 



70 



07.0C 



83.00 



.07 



.001 



.1C 





35 



25 



36.93 



2.80409 



124 



69 



45 



83.15 



.08 





.11 



.001 



30 



30 



46.21 



2.81037 



126 



68 



3( 



30 



.09 





.12 





25 



35 



10.55.75 



2.81673 



127 



67 



15 



45 



.09 





.14 





20 



40 



11.05.55 



2.82316 



128 



66 



06.00 



84.00 



.10 





.15 





15 



45 



15.60 



2.82967 



130 



65 



45 



15 



.11 





.16 



.002 



10 



50 



25.90 



2.83626 



132 



64 



30 



30 



.12 





.18 





05 



55 



36.31 



2.84293 



133 



63 



0.15 



45 



.13 



.20 





04.00 



86.00 



11.47.43 



2.84968 



136 



62 



05.00 



185.00 



.15 



.002 



.22 





55 



05 



58.66 



2.85652 



137 



61 



50 



1 10 



.17 





.24 



.003 



50 



10 



12.10.21 



2 86345 



139 



60 



40 



20 



.18 





.27 





45 



15 



22.10 



2.87046 



140 



59 



1 30 



30 



.20 





.29 





40 



20 



34.34 



2.87757 



142 



58 



30 



40 



.21 





.32 





35 



25 



46.94 



2.88476 



144 



57 



20 



50 



.23 



.002 



.34 





30 



30 



12.59.92 



2.89205 



146 



56 



04.00 



86-00 



.24 



.003 



.37 



.004 



25 



35 



13.13.31 



2.89944 



148 



55 



50 



10 



.26 





.39 





20 



40 



27.11 



2.90693 



150 



54 



40 



20 



.29 





.43 





15 



45 



41-34 



2.91462 



152 



53 



30 



30 



.31 





.47 





10 



50 



55.99 



2.92220 



154 



52 



20 



40 



.34 





.51 



.005 



05 



55 



14.11.13 



2.92999 



156 



51 



10 



50 



.36 





.57 





03.00 



87.00 



26.76 



2.93790 



158 



51 



03.00 



87.00 



.39 



.004 



.62 





55 



05 



42.90 



2.94591 



160 



50 



55 



05 



.41 





.67 



.008 



50 



10 



59.54 



2.95402 



162 



49 



50 



10 



.43 





.71 





45 



15 



15.16.75 



2.96225 



165 



48 



45 



15 



.45 





.75 





40 



20 



34.55 



2.97060 



167 



47 



40 



20 



.47 



.005 



.79 





35 



25 



52.93 



2.97906 



169 



46 



35 



25 



.50 





.83 





30 



30 



16.11.95 



2 98764 



172 



45 



30 



30 



.52 





.87 





25 



35 



31.64 



2.99635 



174 



44 



25 



35 



.55 





.91 



.010 



20 



40 



52 03 



3.00519 



177 



43 



20 



40 



.58 





.96 





15 



45 



17.13.16 



3.01417 



180 



43 



15 



45 



.61 





1.01 



.012 



10 



50 



35.06 



3.02329 



182 



42 



10 



50 



.63 



.006 



1.07 





05 



55 



57.77 



3.03254 



185 



41 



05 



55 



.66 





1.13 





02.00 



88 00 



18.21.33 



3.04192 



188 



40 



02 00 



88-00 



.69 





1.19 





55 



05 



18.45,76 



3.05144 



190 



39 



55 



05 



.74 



.009 



1.24 



.017 



50 



10 



19.11.07 



3.06110 



193 



38 



50 



10 



.78 





1.32 





45 



15 



19.37,35 



3.07091 



196 



37 



45 



15 



.83 





141 





40 



20 



20.04.68 



3.08087 



200 



36 



40 



20 



.87 





1.50 





35 



25 



20.33.09 



3.09099 



202 



36 



35 



25 



.92 





1.58 





30 



3U 



21.02.60 



3.10127 



206 



35 



30 



30 



.96 



.011 



1.67 





25 



35 



21.33.28 



3.11170 



209 



34 



25 



35 



1.02 





1.75 



.025 



20 



40 



22.0j.22 



3.12229 



212 



33 



20 



40 



1.07 



.012 



1.87 





15 



45 



22.38.47 



3.13305 



215 



32 



15 



45 



1.13 





2.00 





10 



50 



23.13.11 



3.14398 



219 



32 



10 



50 



1.19 



.013 



2.12 





05 



55 



23 49.2 



3.15509 



222 



31 



05 



55 



1.26 





2.24 





01.00 



89.00 



24.26.8 



3.16637 



226 



30 



01.00 



89.00 



1.32 



.028 



2.36 





55 



05 



25.06 



3.17783 



229 



29 



55 



05 



1.42 





2.48 



.043 



50 



10 



25.46.9 



3.18947 



233 



28 



50 



10 



1.52 





2.70 





45 



15 



26.29.6 



3.20130 



237 



27 



45 



15 



1.62 





2.91 





40 



20 



27.14.2 



3.21331 



240 



27 



40 



20 



1.72 





3.13 





35 



25 



28.00.8 



3.22551 



244 



26 



35 



25 



1.82 





3.34 





30 



30 



28.49.4 



3.23789 



248 



25 



30 



30 



1.92 





3.56 



.058 



25 



35 



29.40 2 



3.25046 



251 



25 



25 



35 



2.06 





3.77 





20 



40 



30.33.3 



3.26323 



255 



24 



20 



40 



2.20 





4.05 





15 



45 



31.28.9 



3.27620 



259 



23 



15 



45 



2.34 





4.34 



.067 



10 



50 



32.27.1 



3.28938 



264 



23 



10 



50 



2.48 



.020 



4.67 





05 



55 



33.28.1 



3.30278 



268 



22 



05 



55 







5.00 





00.00 



90.00 



34.32 



3.31639 



272 



21 



00.00 



90.00 











