Permanence of the Rutherfurd Photographic Plates. 243 



Results or the Measures, Plate 24, Y- coordinate (Rev'd). 

 Date of Measures, 1895, Dee. 17. 



Temperature, 67.0, 70.2. Circle right 272.20 33, 20 32. 



Runs, +.0190, +.0200. Circle left 20 32, 20 32. 



Desig. 

 of 



Microm. Readings. 



Diflf. 



Mean 



Screw 

 and Div. 



Final 



Obs'r. 





On Scale. 



Star. 



On 



Star. 







2 



Error. 



Reading. 













Line 



Reading. 













A34,E 



9-5245 



36 



10.2925 



0.7680 



0.4015 



+ .0018 



36.4033 



D. 



W 



9-0195 



36 



9-8575 



0.8380 











E 



9-5300 



36 



10.2925 



0.7625 



0.3999 



+.0018 



36.4017 



D. 



W 



9.0150 



36 



9-8520 



0.8370 











116 E 



9-4955 



36 



10.2800 



0.7845 



0.4084 



+ .0019 



36.4103 



J. 



W 



8.9810 



36 



9.8300 



0.8490 











E 



9.4690 



36 



10.2505 



0.7815 



0.4078 



+.0018 



36.4096 



J. 



W 



9.0075 



36 



9-8570 



0.8495 











18 m, E 



9-5125 



112 



9-8575 



0.3450 



0.1949 



— .0006 



112. 1943 



D. 



W 



9.0165 



112 



9-4510 



0.4345 











E 



9-5235 



112 



9-8745 



0.3510 



0.1964 



— .0006 



II2.1958 



D. 



W 



9.0270 



112 



9-4615 



0.4345 











11^ E 



9.5020 



112 



9-8585 



0.3565 



0. 2000 



— .OC06 



II2.1994 



J. 



W 



9-OI45 



112 



9.4580 



0.4435 











E 



9-4750 



112 



9-8335 



0.3585 



0.1972 



—.0005 



112. 1967 



J. 



W 



9-0085 



112 



9.4390 



0.4305 











24JP, E 



9.4820 



63 



10.1790 



0.6970 



0.3671 



+.0050 



63.3721 



J. 



W 



8.9960 



63 



9-7675 



0.7715 











E 



9-4815 



63 



IO.1715 



0. 6900 



0.3641 



+.0050 



63-3691 



J. 



W 



9.0245 



63 



9-7910 



0.7665 











118 E 



9-5305 



63 



10.2080 



0.6775 



0.3605 



+.0050 



63-3655 



D. 



W 



9-0250 



63 



9-7895 



0-7645 











E 



9.5210 



63 



10.2050 



0.6840 



0.3619 



+.0050 



63.3669 



D. 



W 



9.0400 



63 



9-8035 



0.7635 











Ai2,E 



9.4830 



90 



1 1. 0105 



1-5275 



0.7825 



+.0008 



90.7833 



J. 



W 



9.0215 



90 



10.6240 



1.6025 











119 E 



95305 



90 



11.0400 



1-5095 



0.7752 



+.0008 



90.7760 



D. 



W 



9.0320 



90 



10.6235 



I-5915 











A22,E 



9-5150 



49 



10.7925 



1-2775 



0.6614 



+ .0012 



49.6626 



J. 



W 



9.0085 



49 



10.3765 



1.3680 











120 E 



9-5255 



49 



10.7935 



1.2680 



0.6576 



-I-.OOI2 



49.6588 



D. 



W 



9-0415 



49 



10.4040 



1.3625 











A24,E 



9-5305 



75 



9.6910 



0. 1605 



O.I012 



+ .0027 



75.1039 



D. 



W 



9-0135 



75 



9.2580 



0.2445 











121 E 



9.5110 



75 



9.6850 



0.1740 



0. 1072 



+.0027 



75.1099 



J. 



W 



9-0335 



75 



9-2585 



0.2550 











