SCIENTIFIC AMERICAN SUPPLEMENT, from New York, dated August 9, 1890. The full front cover of the issue features an illustration of "A Night Balloon Ascension At Paris" with accompanying article. Also within this issue is an illustration of "M. Pasteur in His Cabinet" with article.

This is a complete issue measuring approximately 11 x 16 inches, contains small edge tears/chipping and is separated at the spine. This should be handled with care.