NEW OBSERVATIONS OF THE PLANET MERCURY. 
453 
three points: (1) in poor seeing the measures decreased; (2) uhcn the cusps were 
estimated, however slightly, the measures dwindled till tlioy were actually snialUr 
than previous determinations; (3) as the planet passed from quadrature toward con- 
junction, the measures of the polar diameters (reduced to distance unity) plcudily 
increased. The first of these facts was testified to, jmssim. As an instance ^vc mny 
take the observations of March 2d and 
od. 
TABLE VII. 
Oorrocted «iid n<Hluccd 
to DiBUnce Unity. 
ing poortr. 
ing poon r 
r-WTii' 
We see 
definition. 
how the decrease in the measures kept step with the decrease in 
the 
The second point is interesting because apparently 
For in the day 
of almost all observatories where previous determinations have been 
to a greater or less extent is 
ibl 
So that 
th 
case 
th 
Flagstaff were assimilated to those of other 
Th 
Dnditions at 
Table r\\\. 
TABLE VTTI. 
