Paged continuously Each plate and one map accompanied by leaf with description letterpress Issued in 12 parts, November 1888-October 1889 "The physical features and faunistic divisions of New England. The physical geography of New England. By W. M. Davis": p. 75-86 "The climate of New England. By W. M. Davis": p. 86-89 "The hymenopterous parasites of North American butterflies. By L. O. Howard": p. [1869]-1896 "Family Braconidae. Subfamily Microgasterinae. By C. V. Riley": p. [1897]-1911 "The dipterous parasites of North American butterflies. By S. W. Williston": p. [1912]-1924 "Studies on the embryological development of Euvanessa antiopa. By Charles W. Woodworth, M.S.": p. 95-104 I. Introduction, Nymphalidae.--II. Lycaenidae, Papilionidae, Hesperidae.--III. Appendix, plates