lue, and only in one case is the large one blue. In almost every
case the large star is yellow. The color most prevailing is yellow; but
the varieties of yellow are very great.

"We may assume, then, that the blue stars are faint ones, and probably
distant ones. But as not all faint stars or distant ones are blue, it
shows that there is a real difference. In the star called 35 Piscium,
the small star shows a peculiar snuffy-brown tinge.

"Of two stars in the constellation Ursa Minoris, not double stars, one
is orange and the other is green, both very vivid in color.

"From age to age the colors of some prominent stars have certainly
changed. This would seem more likely to be from change of place than of
physical constitution.

"Nothing comes out more clearly in astronomical observations than the
immense activity of the universe. 'All change, no loss, 'tis revolution
all.'

"Observations of this kind are peculiarly adapted to women. Indeed, all
astronomical observing seems to be so fitted. The training of a girl
fits her for delicate work. The touch of her fingers upon the delicate
screws of an astronomical instrument might become wonderfully accurate
in results; a woman's eyes are trained to nicety of color. The eye that
directs a needle in the delicate meshes of embroidery will equally well
bisect a star with the spider web of the micrometer. Routine
observations, too, dull as they are, are less dull than the endless
repetition of the same pattern in crochet-work.

"Professor Chauvenet enumerates among 'accidental errors in observing,'
those arising from imperfections in the senses, as 'the imperfection of
the eye in measuring small spaces; of the ear, in estimating small
intervals of time; of the touch, in the delicate handling of an
instrument.'

"A girl's eye is trained from early childhood to be keen. The first
stitches of the sewing-work of a little child are about as good as those
of the mature man. The taking of small stitches, involving minute and
equable measurements of space, is a part of every girl's training; she
becomes skilled, before she is aware of it, in one of the nicest
peculiarities of astronomical observation.

"The ear of a child is less trained, except in the case of a musical
education; but the touch is a delicate sense given in exquisite degree
to a girl, and her training comes in to its aid. She threads a needle
almost as soon as she speaks; she touches threads as delicate as the
spi