of the Ruth erf urd Photographs. 205 



Table III. — {Continued.) Plate III: y Measurements. 



Star. 



y direct. 



y reversed. 





% m i or 









% »», or 









Scale minus Star. 









Scale minus Star. 







Line. 







S- 



H 



Line. 







S—H 



Pchl. 



Hays. 



Schl. 



Hays. 



15 



53 



0.7856 



O.7866 



— O.06 



65 



0.7708 



O.76.81 



+O.14 



2 



50 



0.3928 



0.3918 



+ 



.05 



69 



0.1626 



O.1632 



— .04 



3 



35 



0.8020 



O.8015 



+ 



•03 



83 



0.7534 



0.7555 



— .11 



4 



18 



0.7200 



O.7194 



4 



•03 



100 



0.8375 



O.8408 



— -17 



6 



67 



0.9966 



0-9959 



+ 



■05 



5i 



0.5574 



0.5572 



+ .01 



8 



68 



0.7408 



O.7428 



— 



.10 



50 



0.8144 



O.8135 



4 .05 



10 



46 



0.7719 



0.7692 



+ 



.14 



72 



0.7849 



O.7830 



+ .10 



11 



4i 



0.0348 



0.0328 



+ 



.11 



78 



0.5232 



0.5200 



+ .16 



14 



74 



0.7250 



0.7204 



4 



•24 



44 



0.8316 



O.8282 



+ .17 



16 



19 



0.5458 



O.5422 



4 



.18 



100 



0.0146 



O.OII9 



4 .14 



17 



37 



0.6339 



0.6324 



+ 



.08 



81 



0.9212 



0.9208 



4 .03 



18 



38 



0.4796 



O.4758 



+ 



.21 



81 



0.0778 



0.0741 



+ .20 



20 



37 



0.7001 



O.701 I 





■05 



81 



0.8534 



0.8512 



4- .12 



22 



69 



0.4481 



0.4520 



— 



.20 



50 



O.I OOI 



O.C995 



+ .04 



23 



66 



0.9716 



0.9748 



— 



.18 



52 



0.5775 



0.5795 



— .11 



24 



37 



O.II2I 



0.1 108 



4 



.07. 



82 



0.4415 



0.4392 



+ -13 



25 



47 



O.6516 



0.6499 



4 



.IO 



71 



0.9010 



0.8996 



4- .08 



26 



24 



O.6665 



0.6665 





.OO 



94 



0.8871 



08880 



— .04 



28 



57 



O.7496 



0.7475 



4 



.11 



61 



0.8059 



0. 8040 



4 .10 



29 



81 



O.372O 



0.3685 



+ 



.18 



38 



0.1829 



O.1800 



4- .15 



33 



16 



0.5I05 



0.5121 



— 



.IO 



103 



0.0479 



O.0425 



+ .28 



15 



53 



O.7829 



0.7849 



— c 



.IO 



65 



0.7679 



0.7654 



+o'.'i4 



1 



69 



4875 



0.4878 



— 



■03 



50 



0.0631 



O.063I 



.00 



5 



82 



0.7499 



0.7450 



+ 



•25 



36 



0.8035 



O.803I 



+ .02 



7 



34 



0.7538 



0.7535 



+ 



.02 



84 



0.8054 



O.8001 



+ -29 



23A 



68 



O.5646 



0.561 1 



4- 



.19 



5o 



0.991 I 



0.9874 



+ .21 



27 



46 



O.5160 



0.5145 



+ 



.08 



73 



0.0391 



0.0369 



4- .12 



31 



38 



O.OI55 



0.0181 



— 



.14 



81 



0.5379 



0.537I 



4- .04 



32 



14 



O.I86I 



0.1812 



4 



•25 



105 



0.3760 



0-3750 



4- .05 



33 



16 



0.5II2 



0.5112 





.OO 



103 



0.0484 



0.0438 



4- -24 



34 



49 



0.934I 



0.9330 



4- 



■05 



69 



0.6175 



O.6154 



4- .11 



35 



87 



0. 2068 



0. 2039 



4 



•15 



32 



0.3486 



0.3469 



4- .08 



36 



64 



O.6476 



0.6454 



4- 



.12 



54 



0.9068 



O.9066 



-|- -02 



37 



40 



O.5184 



0.5215 



— 



.16 



79 



0.0340 



O.0320 



4 .11 



39 



63 



O.8299 



0.8256 



4- 



.22 



55 



0.7232 



0.7225 



4- -03 



40 



18 



O.8654 



0.8618 



+ 



.20 



100 



0.6912 



O.691 1 



4 .01 



43 



60 



O.7026 



0.7032 



— 



•03 



58 



0.8524 



O.8500 



4- .13 



44 



80 



O.I296 



0.1265 



4- 



•17 



39 



0.4255 



0.4234 



4- .12 



45 



29 



O.2606 



0.2582 



+ 



•13 



90 



0.2991 



O.2939 



4 .28 



Annals N. Y. Acad. Sci., X., June, 1898—14. 



