THE 
AMERICAN 
JOURNAL OF SCIENCE AND ARTS. 
[THIRD SERIES] 
[Correction, by the Author, for the table on page 393.] 
Results of Observations. 
Each number is the mean of ten observations. : 
299830 0 299860 2 299870 
9720 299920 299860 299790 
299880 40 2998 7 299760 
299920 299840 299800 
299910 299860 299700 299780 299740 
299830 780 299700 299750 299 
299930 299830 299600 299740 299770 
299960 299860 299840 299720 
P 299960 299880 9950 299730 299920 
299860 299820 299930 299950 
299980 299810 9860 299890 299970 
299960 299770 299890 29990 
299910 97 299830 299870 299790 
299630 299860 299850 299840 
299740 299860 299820 2998 299890 
299790 299810 299820 299700 299920 
9980, 299780 9830 299820 299930 
299980 299770 299820 299830 299780 
299940 740 2998 299830 2 
, 299780 299820 299760 299850 
Mean =299838 
Cor. for temp. = +12 (of steel tape, etc.) 
= Vel. of light in air 299850 
Yo Cor. for vacuo = +80 
Vel. of light in vacuo =299930 
¢ 
