[Vol. VIII. Part II.— p. 502.] 



Chateau dc Saintc. Pas de Calais. 



S3 04 

 11 32 

 + 11 4.5.5 



CALCULATION FOR FINDING THE TIME WITHOUT EQUAL ALTITUDES. 



Morning Observations. Very Cli 



45 30.3 



44 46.3 

 S3 50 



Daily % 



S lUi Nov. 1S17, Lai. 50° 19' 57" I-ong, 2" ii 



3 49 15.3 

 24 50 



46 16.3 47 1.3 47 45.3 



24 10 24 20 24 30 



[led. 17 55= 3.0314085 3.O314085 



3 7 36 4.05I3SU 403386511 



24 5.0631811: 5.0(1! 1»6:-, 



.'12871)); 



11 40 45.5 11 48 47.3 11 53 49.1 11 58 50.9 12 3 52.7 12 8 54.5 12 13 56.4 12 IS 58 



s declin. first obser. 16 14 17 ( 

 wir. co-sjne, co-lat. 50 19 57 



©"s ik'din. last obser. 16 14 22 5 Co-sin 



12 34 3 6 

 ! 23 59.9 12 29 1.8 



t ol' Taris. Error of Inst. — G' 



10.3 9.9995 9.9995 



748 30 9.91131 9.9931 



- 78 2.4280 77!!.393ti 



28 172 38 213 



265 4 Itrf. - 247.3 



. 16 14 17 Last ousel 

 39 40 3 



O's declin. first 

 Co Latitude, 



Q"s meridian alt. = 23 25 46 Nat. s 



O's mer. alt. 1st obser. 23 25 46 Nat. 

 Nat. sines of alt. 11 43 45 5 



Trop. parts for seconds of alt. 45 5 



Log. - - - - 



Co-ar. co-sine, co-lat. ©'s declination, 



Horary, - 



23 25 40.5 Nat. sin 

 397617 397614 



397594 Differ. 25 



194547 

 216 



193121 

 225 



191694 

 233 



190269 

 243 



188844 

 251 



187120 

 259 



185995 

 269 



184572 

 276 



183148 

 285 



181441 

 8 



180019 

 17 



194331 



9.28S5 12 

 0-212631 



192896 



9.285323 

 212634 



191461 



11282(1811 

 212634 



11)0026 



9.278813 



21263* 



188593 



9.27.5526 



212635 



187161 



9.272215 



212635 



18572(1 



9.268873 



212635 



184296 



9.265522 

 212636 



182863 



11.2621.26 

 212636 



181433 



9.258716 



212636 



180002 



9 255277 



212637 



9.501176 .497957 .494714 .491447 488161 

 0975 i ! [ 



727)201(2.8 j ; 



1454 



3 7 42.8 

 8 52 17.2 

 8 41 49.7 



10 27.5 

 27.1 

 28.4 

 28.8 

 28.2 

 28.8 

 27.6 

 27.4 

 28.5 



3 658.6 3 614.3 3 5 29.9 3 4 45.5 



85301.4 85345.7 85430.18 55 59.1 



42 34.3 43 17.3 44 1.3 14 46,3 



3 4 0.9 



8 5559.1 



45 30.3 



3 316.1 



8 5643.9 



46 16.3 



3 2 31.3 



8 5728.7 



47 1.3 



3 146.2 3 1 1.1 3 015.8 



8 5813.8 3 5858.9 8 69 44.2 



47 45.3 4829.3 4915.3 



10 27.1 1028.4 1028.8 10 28.2 10 28.8 1027.6 10 27.4 10 28.5 10 29.6 



81.2 Mean E. A. T. = 10' 28" .12 



