Astronomy and Meteorology. 287 
I had turned off the red screen half a minute before and was surprised 
to behold quite distinctly the following segment of the lunar sphere 
. 
. 
at one point but fitfully flashing as reflection from rippled water, and as 
mutable in the respective places of the colors. This bead-thread could 
time protuberances were noted beyond the following limb of the moon, 
The position of its largest one was 75° or 78° W., and in the form 
tion remained the same. ‘This was an extremely beautiful sight, and I 
Watched it closely, giving nearly all my attention to it during 15%, yet at 
to bring his lantern and read the time at which I should indicate the sec- 
ond internal contact of the limbs. Raising my face from the box 
Which the time keeper stood to the telescope a most extraordinary scene 
yas apparent! Over the moon’s black dise colors of the spectrum 
flashed ‘in intersecting circles of equal diameter with that body, and each 
i) Was quite uniformly traceable more than a semi-diameter 
] 
the black 0 
t 8 
Colors Physiological results from a change of position of the body, or of 
