ASTRONOMICAL OBSERVATIONS. 

 APPENDIX A— Continued. 



21 



CAMP 52 A— SEPTEMBER 27, 1855-Continued. 

 Observir — Lieut. H. L. Abbot, 17. S. Top. Engineers. 



Object observed. ; Time of observ'n ' Observed double 



by chronometer. altitudes. 



Pola 



ft. 



s 

 8 

 8 

 8 



s. 



3D.: j 

 11.(1 



20.0 

 11.5 

 07.5 



42.5 

 21.0 

 47..") 

 43.0 

 44.5 



el. m s. 



89 43 10 



8D 44 20 



89 45 30 



89 46 20 



89 46 40 



89 48 10 



89 49 10 



89 50 30 



89 51 30 



89 52 00 



Index error, -f- 1' 20". Barometer, 25.5 in. Thermome- 

 ter, 49°. 



CAMP 53 A— SEPTEMBER 28, 1855. 

 Observer — Lieut. H L. Abbot, K S. Top. Engineers. 



Pegasi 



a Cor. Borealis 



Polaris 



110 02 50 



11(1 36 10 



110 57 20 



111 26 30 



111 59 10 



112 21 50 



81 21 10 



80 40 30 



80 10 30 



79 48 20 



79 26 00 



78 59 40 



89 38 50 



89 39 30 



89 40 20 



89 41 10 



89 41 50 



89 43 10 



89 44 20 



89 45 00 



89 46 10 



89 47 20 



Index error, -)- 1' 20". Barometer, 27.7 in. Thermome- 

 ter, 41°.5. 



CAMP 54 A, (same as 41 A)— SEPTEMBER 29, 1855. 

 Observer — Lieut H. L. Abbot, U. S. Top. Engineers. 



Pegasi . 



Polaris. 



CAMP 54 A, (same as 41 A)— SEPT. 29, 1853— Continued. 

 Observer — Lieut. II. L. Abbot, U. S. Top. Engineers- 



Object observed. 



Time of ob'erv'n Observed double 

 by chronometer. altitudes. 



Polar 



h. 

 8 



in 

 50 

 51 

 52 

 53 



46.0 

 34.5 

 24.5 

 10.5 



d. m. s. 



90 33 40 



90 34 3i) 



90 35 20 



90 35 50 



Index error, + 1' 20". Barometer, 27.7 in. Ther., 41°.5. 

 CAMP 55 A, (same as 42 A)— OCTOBER 2, 1855. 

 Observer — Lieut. H. L. Abbot, U. S. Top. Engineer.!. 



Sun's lower limb. 



Sun's lower limb. 



h. 



9 

 9 

 9 

 9 

 9 

 9 

 9 

 9 

 9 

 9 

 9 

 9 

 9 



3 

 3 

 3 

 3 

 3 

 3 

 3 

 3 

 3 

 3 

 3 





43 



14 

 45 

 45 

 46 

 46 

 47 

 4s 



4H 



49 



50 

 51 



03 



04 

 05 

 05 

 06 



06 



07 

 08 

 08 

 09 



in 



3 10 

 3 11 



44.5 

 23.5 

 02.0 

 41.5 

 18.0 

 56.5 

 33.5 

 12.5 

 52.5 

 30.0 

 08.5 

 47.0 

 25.0 



44.0 

 23.5 

 05.0 

 42.0 

 20.0 

 59.0 

 37.5 

 13.5 

 52.(1 

 31.5 

 08.5 

 47.0 

 25.5 



d. m. s. 



5d on oo 



58 10 00 



58 20 00 



58 30 00 



58 40 00 



58 50 00 



59 00 

 59 10 00 

 59 20 00 

 59 30 00 

 59 40 00 



59 50 00 



60 00 00 



60 00 00 



5D 50 (III 



59 40 00 



59 30 (10 



59 20 00 



59 10 00 



59 00 00 



58 50 00 



58 40 00 



58 30 00 



58 20 00 



58 10 (10 



58 00 00 



Index error, — 0' 30". 



CAMP 57 A— OCTOEER 5, 1855. 

 Observer — Lieut. H. L. Abbot, XI. S. Top. Engineers. 



ft. 

 7 



7 

 8 



in. 

 56 

 58 

 (in 

 02 

 03 

 05 



51.0 

 54.0 

 43.5 

 16.0 

 39.5 

 28.0 



d. in. s. 



116 24 50 



117 06 50 



117 44 20 



118 14 30 



118 42 30 



119 21 10 



8 13 45.5 



8 15 40.0 



8 16 55.0 



8 17 49.0 



8 18 58.0 



8 22 25.0 



8 23 57.5 



8 25 14.0 



8 26 29.5 



8 27 56.0 



8 29 13.0 



10 20 



11 do 



12 00 

 12 30 

 12 50 

 15 50 



17 20 



18 40 



19 20 



91 



Dl 



91 



91 



91 



91 



91 



91 



91 



91 30 00 



91 20 50 



Index error, — 0' 30". Barometer, 27.3 in. Ther., 46°. 



