July 30th; Description of a New Species of the Genus Pitta; On Cyprinus corporalis Mitch., Referring It to the Genus Semotilus Rafinesque; Descriptions of New Pteropine Bats from Africa; Descriptions of Certain Species of Diurnal lepidoptera, Found within the Limits of the United States and of British America; Notes on Some Genera of Fishes of the Western Coast of North America; On a New Typs of Aulostomatoids, Found in Washington Territory; A Monograph of the Tringeæ of North America