The aeronaut can scarcely turn his camera to better account than in the pursuit of cloud photography. Snap–shots of objects on the earth taken from short range overhead are generally more curious than interesting, and extended views from greater heights, however impressive to the observer, seldom make satisfactory photographs, not only through lack of detail, but owing also to the haze that too often veils the landscape at the height— say of 1,000 ft. and upwards. Speaking generally, through the greater part of any balloon voyage worthy of the name, successful views of the country are out of the question. On the other hand, on days that are not altogether cloudless, there is often opportunity at nearly all heights for interesting and valuable work in photographing all features of the cloudscape, from the mere withering cloudlet that wanders by to the piles and masses of dense cloud that make up the scenery of a full sky.