compiled with especial regard to the "catalogue of british neuroptera" : published by the society in 1870

read June 29th, 1817

at its meeting in St. Louis, May, 1872

by Prof. H. A. Hagen. Tropical collecting

May, 1874

proceedings of the american academy of arts and sciences ; presented October 10, 1888

observations : elements of the ring ; Observations respecting the periodic meteors of August

= Observations sur les volcans des deux Siciles. Telles qu'elles ont été communiquées à la Société Royale de Londres

or a list of all the land and freshwater shells, recent and fossil, of the Madeiran islands: arranged in groups according to their natural affinities; with diagnoses of the groups, and of the new or hitherto imperfectly defined species

unionidae