200 Praesepe Group ; Measurement and Reduction 



Table III. — Plate I : x Measurements. 



Star. 



x direct. 



x reversed. 





tin 



, or 









Y 2 m 



, or 









Scale minus Star. 









Scale minus Star. 







Lines. 







8— 



K 



Lines. 







8— K 

 4-0.07 



Schl. 



Kretz. 



Schl. 



Kretz. 



15 



60,61 



0.9016 



O.8984 



+c 



"19 



57,58 



0.6695 



06681 



15 



60,61 



0.9010 



0.8994 



+ 



.07 



57,58 



0.6685 



0.6696 



— .06 



2 



94,95 



0.4114 



0.4114 





.OO 



24,25 



0.1652 



0.1635 



4- .08 



3 



93,94 



0.2961 



0.2954 



+ 



.04 



25,26 



0.2798 



0.2782 



4- .08 



4 



91,92 



0.5395 



0.54I9 



— 



•13 



27,28 



0.0356 



0.0348 



4- .04 



6 



78,79 



0.3274 



0.3290 



— 



.08 



40,41 



O.2472 



0.2455 



4- .08 



8 



71,72 



0.4849 



0.4878 



— 



•15 



47,48 



0.0884 



0.0849 



4- .19 



10 



70,71 



0.5885 



0.5859 



4- 



.14 



48,49 



— -OI74 



— .0169 



— .03 



11 



69,70 



0.7241 



0.7252 



— 



.06 



43,49 



0.8429 



0.8451 



— .12 



14 



61.62 



0.1022 



0.1020 



+ 



.OI 



57,58 



0. 4649 



0.4684 



— .19 



16 



60 



0.4836 



0.4858 



— 



.12 



58,59 



0.5859 



0.5871 



— .06 



17 



58,59 



0.5726 



0.5739 



— 



•07 



60,61 



— .0020 



— .0006 



— .07 



18 



57,53 



0.0299 



0.0321 



— 



.12 



61,62 



0.5404 



0-539I 



4- .07 



20 



56.57 



0.6860 



0.6865 



— 



•03 



61,62 



0.8866 



0.8865 



.00 



22 



54,55 



0.745I 



0.7494 



— 



•23 



63,64 



08208 



0.8221 



— .08 



23 



53-54 



0.3750 



0.3759 



— 



•05 



65,66 



0.1946 



O.I944 



4- .01 



24 



5L52 



0.2446 



0.2451 



— 



•03 



67,68 



0.3272 



0.3256 



4- .08 



25 



50,51 



0.6644 



0.6640 



4- 



.02 



67,68 



0.9106 



0.9080 



+ .13 



26 



50,51 



0.5456 



0.5480 



— 



.13 



68,69 



0.0282 



0.0231 



4- .27 



27 



50,51 



0.2915 



0.2942 



— 



.14 



68,69 



0.2752 



0.2784 



— -17 



28 



50,51 



0.0596 



0.0622 



— 



.14 



68,69 



0.5080 



0.5075 



4- -03 



29 



49,5o 



0-4759 



O.4772 



— 



.07 



69,70 



0.0936 



O.0944 



— .04 



15 



60,61 



0.9005 



0.8999 



+0.02 



57,58 



0.6698 



0.6682 



+0.08 



15 



60,61 



0.9009 



0.8990 



4- 



.12 



57,58 



0.6688 



0.6669 



4- .10 



1 



95,96 



0.4069 



0. 4066 



+ 



.02 



23,24 



0.1675 



0.1684 



— .05 



2 



94,95 



0.4126 



0.4120 



+ 



•03 



24,25 



0.1625 



0.1616 



4- .05 



5 



82,83 



0.5I52 



0.5181 



— 



•15 



36,37 



0-0534 



0.0540 



— -03 



7 



75,76 



0.5840 



0.5830 



4- 



•05 



43,44 



— -0130 



— .0164 



4- .18 



23 A 



52,53 



0-3599 



0.353I 



4- 



.36 



66,67 



0.2135 



0.2155 



— .11 



3i 



48,49 



0.8738 



0.8725 



4- 



.OS 



69,70 



0.6971 



0.6972 



— .01 



32 



47,48 



— .0078 



— .0088 



4- 



.05 



71,72 



0.5745 



0.5799 



— -29 



33 



45,46 



0.3332 



0.3376 



— 



•23 



73,74 



0.2350 



0.2410 



— -32 



34 



44,45 



0.6959 



0.7006 



— 



•25 



73,74 



0.8731 



0.8708 



4- -13 



35 



42,43 



0.7008 



0.7029 



— 



.12 



75,76 



0.8659 



0.8645 



4- .08 



36 



41,42 



0.2239 



0.2221 



4- 



•09 



77,78 



0.3489 



0-35I5 



— .14 



37 



41,42 



0.0792 



0.0799 



— 



.04 



77,78 



o.4944 



0.4919 



4- .13 



33 



37,38 



0.4668 



0. 469 1 



— 



.12 



81,82 



0.1081 



0. 1061 



4- .10 



39 



36,37 



0.7224 



0.7174 



+ 



.26 



8r,82 



0.8555 



0.8554 



.00 



40 



34.35 



0.8836 



0.8819 



4- 



.08 



83,84 



0.6880 



0.6890 



— .05 



43 



27,28 



— .0094 



— .0124 



4- 



.16 



91,92 



0.5739 



0.5781 



4- .04 



44 



26,27 



0.4574 



0.4624 





.26 



92,93 



0.1 164 



0.1168 



— .02 



