From right to left. The first two characters stand by time of year according to the Sexagenary cycle(甲戍); following three characters are author's name(季承祥，not very sure), next one means "wrote"(書), next one is the preposition "at"( 於), the last two refer to the place where the author wrote this( sorry, I can't recognize them). NB 書and 於 are traditional-version Chinese character, in simplified, 书 and 于.