NY: Joseph H. Ladd, 1864. First edition, second thousand. 8vo., viii-351, folding chart,  pp. adverts, many illustrated. Original blind-decorated cloth, titled in gilt on the spine. Light foxing, small stain of the folding chart and following 2 leaves. A near fine copy. Item #53195
John Towler (1811 - 1889) was born in Yorkshire, England and educated as a nonresident student at St. John's in Cambridge; he migrated to the United States in 1850, where he taught at Lima Seminary before his appointment in 1852 at Hobart College as a professor of modern languages, mathematics, anatomy, pharmacy, chemistry, civil engineering and medical jurisprudence. In 1855, he was awarded a M.D. from Geneva Medical College and served as its dean until 1872.
Dr. Towler was the editor of HUMPHREY'S JOURNAL OF PHOTOGRAPHY and other works on photography. The SILVER SUNBEAM was his most comprehensive manual and the most often used of its day, going through nine editions. The contributors included Blanquart-Evrard, John W. Draper, M. Carey Lea, R.J. Fowler, et al.
Roosens and Salu No. 6404.