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.