Permanenoe of the Butherfurd Photographic Plates. 219 



Results of the Measures, Plate 18, Y- coordinate. 

 Date of Measures, 1895, Dec. 2. 



O I II III 



Temperature, 58.8, 63.5. Circle right 91 43 31, 43 38. 



Runs +.0180, +.0180. Circle left 43 52, 43 50. 



Desig. 



Microm. Readings. 





Mg&h 



Screw 











of 





On Scale. 



Diflf. 





and Div. 



Final 



Obs'r. 



star. 



On 

 star. 







2 



Error. 



Reading. 













Line 

 94 



Reading. 













A34.E 



9.0160 



11.0055 



+ 1.9895 



0.9900 



— .0006 



94.9894 



D. 



W 



9-5030 



94 



11-4735 



+ 1-9705 











E 



9.0205 



94 



10.9895 



+ 1.9690 



0.9856 



— .0006 



94.9850 



D. 



W 



9-4895 



94 



11.4630 



+ 1.9735 











10 E 



9.0165 



94 



11.0070 



+ 1-9905 



0.9912 



— .0006 



94.9906 



J. 



W 



9.4320 



94 



11.4065 



+ 1-9745 











E 



9.0050 



94 



10.9940 



+ 1.9890 



0.9922 



— .0006 



949916 



J. 



W 



9-5180 



94 



11.4980 



+ 1.9800 











18 m, E 



9.0300 



19 



9-3730 



+0.3430 



0.1 641 



+ .0006 



19.1647 



D. 



W 



9-5230 



19 



9-8365 



+0.3135 











E 



9.0115 



19 



9-3615 



+0.3500 



0.1650 



+.0006 



19.1656 



D. 



W 



9.5100 



19 



9.8200 



+0.3100 











11 E 



8.9605 



19 



9.3010 



+0.3405 



0.1629 



+.0006 



19-1635 



J. 



W 



9-4930 



19 



9.8040 



+0.3110 











E 



9.0245 



19 



9-3610 



+0.3365 



0.1639 



+.0006 



19.1645 



J. 



W 



9.4910 



19 



9.8100 



+0.3190 











24 p, E 



8.9815 



68 



8.9545 



— 0.0270 



— 0.0072 



+.0030 



67.9958 



J. 



W 



9.5070 



68 



9-5050 



— 0.0020 











E 



9.0020 



68 



9-0345 



+0.0325 



+0.0099 



+.0030 



68.0129 



J. 



W 



9-4895 



68 



9-4965 



+0.0070 











12 E 



9.0005 



68 



9.0165 



+0.0160 



+0.0015 



+.0030 



68.0045 



D. 



W 



9.5220 



68 



9.5120 



O.OIOO 











E 



9.0230 

 9.5290 



68 

 68 



9-0415 

 9-5175 



+0.0185 

 — 0.0II5 



+0.0018 



+.0030 



68.0048 



D. 



A 12, E 



9-0015 



40 



10. 2 1 10 



+1.2095 



0.5972 



+.OCO5 



40.5977 



J. 



W 



9.5000 



40 



10.6795 



+ I-I795 











13 E 



9.0400 



40 



10.2385 



+ I. 1985 



0.5918 



+.0004 



405922 



D. 



W 



9-5135 



40 



10.6820 



+ 1. 1685 











A22, E 



8.9700 



81 



10.4320 



+ 1.4620 



0.7225 



+.0022 



81.7247 



J. 



W 



9-4915 



81 



10.9195 



+ 1.4280 











14 E 



9-0255 



81 



10.4785 



+ 1-4530 



0.7166 



+.0021 



81.7187 



D. 



W 



9-5155 



81 



10.9290 



+ 1-4135 











A24, E 



9-0255 



56 



9-5545 



+0.5290 



0.2608 



+ -0033 



56.2641 



D. 



W 



9.524) 



56 



10.0380 



+0.5140 











15 E 



8.9875 



56 



9-5295 



+0.5420 



0. 2666 



+-0034 



56.2700 



J. 



W 



9-5020 



56 



10.0265 



+0.5245 











