Trial of Captain Thomas Atchison of the Royal Artillery, by a general court martial at Malta : in consequence of having requested to be exonerated from firing patteraro salutes and tolling a Roman Catholic bell for the church and image rites of Roman Catholic priests : with an appendix describing those rites of the Romish and Greek churches which British Protestant troops, infantry as well as artillery, were required by the priests to attend and assist : also, the nature of the attendance and assistance consequently ordered to be given : with official documents on the subject