Permanence of the Rutherfurd Photographic Plates. 253 



Results of the Measures, Plate 16, Y-coordinate (Rev'd). 

 Date of Measures, 1895, Dec. 31. 



Temperature, 66.5, 68.0. Circle right 272 26 20, 26 21. 



Runs, +.0190, +.0200. Circle left 26 21, 26 21. 



Desig. 

 of 



Microm. Readings. 



DiflF. 



Mean 



Screw 

 and Div. 



Final 



Obs'r. 





On Scale. 



Star. 



On 



Star. 







2 



Error. 



Reading. 













Line 



Reading. 













A34,E 



9-5165 



34 



97095 



0. 1930 



0. 1004 



+ .0018 



34.1022 



D. 



W 



9.0100 



34 



9.2185 



0.2085 











E 



9-5295 



34 



9-7215 



0.1920 



0.0998 



+.0018 



34.1016 



D. 



W 



9.0260 



34 



9.2330 



0. 2070 











160 E 



9.5090 



34 



9-6995 



0.1905 



0.0971 



+ .0017 



34.0988 



D. 



W 



9.0500 



34 



9. 2480 



0.1980 











E 



9.5200 



34 



9-7105 



0. 1905 



0.0991 



+.0018 



34- 1009 



D. 



W 



9.0205 



34 



9.2265 



0. 2060 











18 m, E 



9.5160 



109 



II. 1030 



1.5870 



0.8005 



— .0002 



109.8003 



D. 



W 



9.0165 



109 



10.6315 



1. 6150 











E 



9.5090 



109 



II-0955 



1.5865 



0,8018 



— .0002 



109.8016 



D. 



W 



9.0105 



109 



10.6310 



1.6205 











161 E 



9.5080 



109 



II.IOIO 



1-5930 



0.8034 



— .0C02 



109.8032 



D. 



W 



9-0385 



109 



10.6590 



1.6205 











E 



9-5070 



109 



1 1. 1000 



I-5930 



0.8026 



— .0002 



109.8024 



D. 



W 



9-0185 



109 



10.6360 



1.6175 











24 i>, E 



9-5265 



61 



9-54TO 



0.0145 



0.0124 



+.0039 



61.0163 



D. 



W 



9.0210 



61 



9-0560 



0.0350 











E 



9-5105 



61 



9-5215 



O.OIIO 



0.0120 



+.0040 



61.0160 



D. 



W 



9.0115 



61 



9.0485 



0.0370 











162 E 



9-5300 



61 



9-5415 



0.0115 



0.0125 



+.0040 



61.0165 



D. 



W 



9.0295 



61 



9.0680 



0.0385 











E 



9-5295 



61 



9-5400 



0.0105 



O.0114 



+ .0039 



61.0153 



D. 



W 



9-0315 



61 



9.0665 



0.0350 











A 12, E 



9-5065 



88 



10.3485 



0.8420 



0.4228 



+ .0008 



88.4236 



D. 



W 



9-0415 



88 



9.8905 



0.8490 











163 E 



95330 



88 



10.^780 



0.8450 



0.4226 



+ .0008 



88 4234 



D. 



W 



9-0330 



88 



9-8785 



0.8455 











A22, E 



9-5155 



47 



10.1300 



0.6145 



0.3155 



+ .OOII 



47.3166 



D. 



W 



9-0340 



47 



9.6815 



0.6475 











164 E 



9-5275 



47 



10.1430 



0.6155 



0.3161 



-f.OOII 



47.3172 



D. 



W 



9.0425 



47 



9-6915 



0.6490 











A 24, E 



9-5175 



72 



11.0240 



I-5165 



0.7601 



-I-.00I9 



72.7620 



D. 



W 



9.0190 



72 



10.5430 



1.5240 











165 E 



9-5195 



72 



11.0320 



1-5125 



0.7605 



+.0019 



72.7624 



D. 



W 



9-0305 



72 



10.5600 



1-5295 











