Trinity Church are two landmarks not to be mistaken. Washington Street
slants across the picture as a narrow cleft. Milk Street winds as if the
cowpath which gave it a name had been followed by the builders of its
commercial palaces. Windows, chimneys, and skylights attract the eye in
the central parts of the view, exquisitely defined, bewildering in
numbers. Towards the circumference it grows darker, becoming clouded and
confused, and at one end a black expanse of waveless water is whitened by
the nebulous outline of flitting sails. As a first attempt it is on the
whole a remarkable success; but its greatest interest is in showing what
we may hope to see accomplished in the same direction.

While the aëronaut is looking at our planet from the vault of heaven where
he hangs suspended, and seizing the image of the scene beneath him as he
flies, the astronomer is causing the heavenly bodies to print their images
on the sensitive sheet he spreads under the rays concentrated by his
telescope. We have formerly taken occasion to speak of the wonderful
stereoscopic figures of the moon taken by Mr. De la Rue in England, by Mr.
Rutherford and by Mr. Whipple in this country. To these most successful
experiments must be added that of Dr. Henry Draper, who has constructed a
reflecting telescope, with the largest silver reflector in the world,
except that of the Imperial Observatory at Paris, for the special purpose
of celestial photography. The reflectors made by Dr. Draper "will show
Debilissima quadruple, and easily bring out the companion of Sirius or the
sixth star in the trapezium of Orion." In taking photographs from these
mirrors, a movement of the sensitive plate of only one-hundredth of an
inch will render the image perceptibly less sharp. It was this accuracy of
convergence of the light which led Dr. Draper to prefer the mirror to the
achromatic lens. He has taken almost all the daily phases of the moon,
from the sixth to the twenty-seventh day, using mostly some of Mr.
Anthony's quick collodion, and has repeatedly obtained the full moon by