Correspondence on comets observed between 1853 and 1855, including Secchi's Comet (1853); the Southern Comet (1853); Klinkerfeus's first and second comets (1853-1854); and the Second Comet of 1854. The correspondents are largely interested amateurs forwarding their own observations with a few theories on comets, but also include O. Struve and J.R. Hind. The volume includes T. Maclear's South African observations, the time of return to perihelion of comets and newspaper articles on recent comets.