(Table III.) Ivory' 



s mean Astronomical Refractions. 





7 



Alt. 



Zen. 

 dist- 



a o 



(6 cd 

 a; ^ 



Loga- | 

 rithm. 



z. 



Log. diff. for 



Alt. 



i 

 Zen. 

 dist. 





Loga- 

 rithm. 

 Z. 



Log. 



diff. for 



1' of 



1' of 



l'of 



1" of 







«3 £ 



Z. D. 



Refn. 







ZD. 



Refn. 



o ' 



o I 



/ // 









o ' 



o / 



o // 









29.00 



61.00 



1.45.01 



2.02124 







20.00 



70.00 



2.19.36 



2.20185 







50 



10 



45.73 



2.02420 



30 



412 



55 



05 



39.87 



2.20379 



39 



271 



40 



20 



46.45 



2.02717 



30 



411 



50 



10 



40.59 



2 20573 



39 



271 



30 



30 



47.19 



2.03015 



30 



404 



45 



15 



41.31 



2.20768 



39 



271 



20 



40 



47.93 



2.03315 



30 



404 



40 



20 



42.04 



2.20963 



39 



271 



10 



50 



48.68 



2.03616 



30 



401 



35 



25 



42.78 



2.21159 



39 



266 



28.00 



62.00 



1.49.44 



2.03918 



30 



398 



30 



30 



2.43 52 



2.21356 



39 



266 



50 



10 



50.20 



2.04221 



30 



398 



25 



35 



44.26 



2.21554 



40 



265 



40 



20 



50.97 



2 04526 



31 



396 



20 



40 



45.01 



2.21752 



40 



265 



30 



30 



51.76 



2.04832 



31 



387 



15 



45 



45.77 



2.21951 



40 



262 



20 



40 



52.55 



2.05138 



31 



387 



10 



50 



46.53 



2.22150 



40 



262 



10 



50 



53.35 



2.05446 



31 



385 



05 



55 



47.30 



2.22351 



40 



261 



27.00 



6300 



1.54.17 



2.05755 



31 



377 



19.00 



71.00 



2.48.08 



2.22552 



40 



259 



50 



10 



54.99 



2.06065 



31 



377 



55 



05 



48.86 



2.22754 



40 



258 



40 



20 



55 82 



2 46377 



31 



377 



50 



10 



49.65 



2.22956 



40 



256 



30 



30 



36. 6u 



2.06690 



31 



374 



45 



15 



50.45 



2.23159 



41 



254 



20 



40 



57.50 



2.07004 



31 



373 



40 



20 



51.25 



2.23363 



41 



254 



10 



50 



58.35 



2.07319 



32 



371 



35 



25 



52.06 



2.23568 



41 



253 



26.00 



6400 



1.59.22 



2.07635 



32 



363 



30 



30 



2.52.87 



2.23773 



41 



253 



50 



10 



2.00.10 



2.07954 



32 



363 



25 



35 



53.70 



2.23979 



41 



349 



40 



20 



00.99 



2.08274 



32 



360 



20 



40 



54,53 



2.24186 



41 



249 



30 



30 



01.89 



2.08595 



32 



357 



15 



45 



55.37 



2.24394 



42 



248 



20 



40 



02.80 



2.08918 



32 



355 



10 



50 



56.21 



2.24603 



42 



248 



10 



50 



03.72 



2.09242 



32 



352 



05 



55 



57.06 



2 24812 



42 



246 



25.00 



65-00 



2.04.65 



2.09567 



33 



350 



18 00 



72.00 



2.57.92 



2.25022 



42 



244 



50 



10 



05.59 



2.09894 



33 



348 



55 



05 



5S.79 



2.25233 



42 



243 



40 



20 



06.54 



2.10223 



33 



346 



50 



10 



59.66 



2,25445 



42 



243 



30 



30 



07.51 



2.10553 



33 



340 



45 



15 



3.00.54 



2.25657 



42 



241 



20 



40 



08.49 



2.10885 



33 



339 



40 



20 



01.43 



2.25870 



43 



239 



10 



50 



09.48 



2.11219 



33 



337 



35 



25 



02.33 



2,26084 



43 



238 



24.00 



66.00 



2.10.48 



2.11555 



34 



336 



30 



30 



3.03.23 



2.26299 



43 



238 



50 



10 



11.50 



2.11892 



34 



330 



25 



35 



04.14 



2.26515 



43 



237 



40 



20 



12.53 



2.12230 



34 



328 



20 



40 



05.06 



2.26732 



43 



236 



30 



30 



13.57 



2.12570 



34 



427 



15 



45 



05.99 



2.26950 



44 



234 



20 



40 



14.62 



2.12912 



34 



326 



10 



50 



06.93 



2.27168 



44 



233 



10 



50 



15.69 



2.13256 



34 



322 



05 



55 



07.87 



2.27388 



44- 



233 



23.00 



67.00 



2.16.78 



2.13602 



35 



317 



17-00 



73.00 



3.08.83 



2.27608 



44 



2*8 



50 



10 



17.88 



2.13950 



35 



316 



55 



05 



09.80 



2.27829 



44 



228 



40 



20 



1899 



2. 1 4300 



35 



315 



50 



10 



10.77 



2.28051 



44 



227 



30 



30 



20.12 



2.14652 



35 



312 



45 



15 



11.75 



2.28274 



45 



227 



20 



40 



21,27 



2.15006 



35 



308 



40 



20 



12.74 



2.28498 



45 



225 



10 



50 



22 43 



2.15362 



36 



307 



35 



25 



13.74 



2.28723 



45 



225 



2200 



68-00 



2.23.61 



2.15720 



36 



303 



30 



30 



3.14.75 



2.28948 



45 



223 



50 



10 



24.81 



2.16080 



36 



300 



25 



35 



15.77 



2.29174 



45 



222 



40 



20 



26.03 



2-16442 



36 



297 



20 



40 



16.80 



2.2<J402 



46 



22 i 



30 



30 



27.26 



2.16806 



36 



296 



15 



45 



17.83 



2.29631 



46 



220 



20 



40 



28.50 



2.17172 



37 



395 



10 



50 



18.88 



2.29860 



46 



220 



10 



50 



29.76 



2.17540 



37 



292 



05 



55 



19.94 



2.30091 



46 



218 



21.00 



6900 



2.31.64 



2 17911 



37 



290 



16.00 



74.00 



3.21.01 



2.30323 



46 



217 



55 



05 



31.69 



2,18097 



37 



287 



55 



05 



22 09 



2.30556 



47 



216 



50 



10 



32.34 



2.18284 



37 



287 



50 



10 



93.18 



2.30789 



47 



214 



45 



15 



33.00 



2.18471 



38 



384 



45 



15 



24.28 



2.31023 



47 



213 



4U 



20 



33.66 



2.18659 



38 



284 



40 



20 



25.39 



2.31259 



47 



213 



35 



25 



34.33 



2.18847 



38 



981 



35 



25 



2652 



2.31496 



47 



212 



30 



30 



2.35.0U 



2.19036 



38 



281 



30 



30 



3-27.65 



2.31734 



48 



210 



25 



35 



35.68 



2.19226 



38 



279 



25 



35 



28.79 



2.31973 



48 



208 



2C 



40 



36.36 



2.19416 



38 



279 



20 



40 



29.95 



2 32213 



48 



207 



IE 



45 



37.05 



2,19607 



38 



277 



15 



45 



31.12 



2.32454 



48 



206 



H 



50 



37.75 



2.19794 



38 



275 



10 



50 



32 30 



2.32696 



48 



205 



05 



55 



38.45 



2.19992 



39 



275 



05 



55 



3349 



2.33039 



49 



204 



20 0C 



70.00 



2.39. It 



2.20185 



39 



I 



272 



15.00 75.00 



1 



; 3-34.70 



1 



2.33184 



49 



203 



