Permanence of the Rutherfurd Photographic Plates. 261 



Results of the Measures, Plate 16, Faint Stars, X-coordinate 



(Rev'd). 

 Date of Measures, 1896, Jan. 6. 



O J II I II 



Temperature, 61.8, 69.0. Circle right 2 26 20, 26 22. 



Runs, -{-.0190, -f .0190. Circle left 26 22, 26 20. 



Desig. 

 of 



Microm. Readings. 



Difif. 



Mean 



Screw 

 and Div. 



Final 



Obs'r. 





On Scale. 



Star. 



On 

 Star. 







2 



Error. 



Reading. 













Line 



Reading. 













A34,E 



9.5100 



lOI 



II. 0410 



I-5310 



0.4034 



— .0001 



101.4033 



D. 



W 



9.0100 



lOI 



9.0925 



0.0825 











E 



9-5450 



lOI 



11.0685 



1-5235 



0.3984 



— .0001 



101.3983 



D. 



W 



9.0300 



lOI 



9. 1000 



0.0700 











195 E 



9.4940 



lOI 



11.0385 



1-5445 



0.4076 



— .0001 



101.4075 



J. 



W 



9.0050 



lOI 



9.0910 



0.0860 











E 



9.5110 



lOI 



II. 0410 



1-5300 



0.4038 



— .0001 



101.4037 



J. 



W 



8.9890 



lOI 



9.0740 



0.0850 











i8m, E 



9-5115 



29 



II-3415 



1.8300 



0.5545 



+.0005 



29.5550 



D. 



W 



9.0165 



29 



9-4045 



0.3880 











E 



9-5^05 



29 



11-3410 



1-8305 



0.5556 



+.0005 



29.5561 



D. 



W 



9-OI55 



29 



9-4075 



0.3920 











196 E 



9.4920 



29 



11-3125 



1.8205 



0.5548 



+.0005 



29-5553 



J. 



W 



9.0090 



29 



9-4075 



0.3985 











E 



9-5005 



29 



11.3270 



1.8265 



0.5575 



+.0005 



29.5580 



J. 



W 



8.9860 



29 



9-3895 



0.4035 











24jj, E 



9.5060 



64 



10.2710 



0.7650 



0.5232 



+.0041 



64.0273 



J. 



W 



8.9920 



63 



10.3200 



1.3280 











E 



9.4990 



64 



10.2505 



0.7515 



0.5190 



+.0041 



64.0231 



J. 



W 



8.9945 



63 



10.3190 



1.3245 











19t E 



9-5255 



64 



10.2925 



0.7670 



0.5224 



+.0040 



64.0264 



D. 



W 



9.0165 



63 



10.3390 



1.3225 











E 



9-5115 



64 



10.2715 



7600 



0.5198 



+.0040 



64.0238 



D. 



W 



9.0130 



63 



10.3320 



1.3190 











A5, E 



9-5I20 



37 



11.3295 



1.8175 



0.5501 



+.0016 



37.5517 



J. 



W 



8.9930 



37 



9.3760 



0.3830 











198 E 



9-5560 



37 



11.3690 



1. 8130 



0.5511 



+.0016 



37.5527 



D. 



W 



9-0265 



37 



9.4180 



0.3915 











A6, E 



9-5025 



38 



10.4660 



0.9635 



0.6210 



-4-. 0008 



38.1218 



J. 



W 



9-0035 



37 



10.5240 



1.5205 











199 E 



9-5360 



38 



10.4995 



0.9635 



0.6229 



+.0008 



38.1237 



D. 



W 



9.0425 



37 



10.5705 



1.5280 











Aii.E 



9.5240 



53 



10.7490 



1.2250 



0.7534 



+.0005 



53.2539 



D. 



W 



9.0320 



52 



10.8205 



1.7885 











200 E 



9-5050 



53 



10.7250 



1.2200 



0.7529 



+.0005 



53.2534 



J. 



W 



8.9960 



52 



10.7875 



1.7915 











Annals N. Y. Acad. Sci., IX, December, 3896.— 18. 



