



















40 THE ROYAL SOCIETY OF CANADA 
TABLE V.—SUMMARY OF MEASURES. 
Series I Measured by Plaskett— À 4250. 30° 
1st Correction 2nd Correction 
Date Measured Method Method 
Plate |G.M.T.1911| Velocity = a 
g |Vate| & of Vi Va 
859c Oct. 3-13| 1-410 (29° 59/| 1-611 |80° 33//25° 36/| 1-606 | 1-711 
860c “ 3-17} 1-450 |29 59] 1-664 80 35/25 31) 1-653 | 1-767 
d 3-17] 1-450 |29 59] 1-658 30 35125 31! 1-645 | 1-753 
861c 3-18} 1-429 29 59] 1-632 [30 35125 31) 1-623 | 1-735 
d 3-18} 1-419 |29 59] 1-622 (80 35125 31) 1-612 | 1-723 
863c 5-13| 1-416 |29 59] 1-619 30 3525 39) 1-608 | 1-713 
865c | 5-28| 1-376 |29 59] 1-572 (80 35125 43 | 1-561 | 1-666 
d 5-28) 1-374 |29 59] 1-570 30 3525 43) 1-559 | 1-665 
866c 5-30| 1-408 |29 59 | 1-606 130 35/25 43 | 1-594 | 1-703 
d 5:30} 1-400 |29 59] 1-597 30 35/25 43) 1-585 | 1-695 
867c 5-32] 1-391 |29 59 |1-587 380 35/25 43 | 1-577 | 1-683 
d 5-32) 1-445 129 59] 1-645 30 3525 43 | 1-634 | 1-746 
869c 7-13} 1-428 (30 0|1-630 30 31125 39 | 1-620 | 1-731 
d | 718144 080 0! 1-648 30 31/25 39 | 1-637 | 1-748 
870c | 7-15} 1-453 30 0; 1-657 30 31125 39) 1-646 | 1-759 
d | 7-15) 1-460 130 0| 1-665 (30 31/25 39] 1-654 | 1-767 
CN 7-18} 1-469 30 0| 1-674 (30 31/25 39] 1-664 | 1-777 
d 7-18} 1-390 |30 0! 1-590 (30 31/25 39] 1-581 | 1-687 
872c 7-19) 1-480 30 0! 1-686 (30 31/25 39] 1-674 | 1-791 
d 7-19, 1-425 130 O0 | 1-626 130 "31 125:- 391! 1-617) 1727 
873¢ 9-12) 1-415 30 0) 1-815 30 29/25 43} 1-608 | 1-712 
d 9-12) 1-416 30 0} 1-616 [30 2925 43) 1-609 | 1-713 
S74c 9-14; 1-412 30 0| 1-612 130 29/25 43 | 1-605 | 1-709 
d 9-14, 1-414 30 0} 1-614 (30 2925 43) 1-606 | 1-711 
Means Linear 29 59] 1-625 30 33125 39] 1-616 | 1-725 
Means Angular 13° -32 113°-32 |13°-59 
Probable: Error Simple Plate) "Rte RS ce = + +020 
= Mean tee a ora RE CPR te eae CE = + -004 
