"EVERY MAN IS A VALUABLE MEMBER OF SOCIETY WHO BY HIS OBSERVATIONS, RESEARCHES, AND EXPERIMENTS PROCURES KNOWLEDGE FOR MEN."-SMITHSON. WASHINGTON: 1862. OCT CONTENTS. ARTICLE I. CATALOGUE OF THE DESCribed DipterA OF NORTH AMERICA. ARTICLE II. CATALOGUE OF THE DESCRIBED LEPIDOPTERA OF NORTH AMERICA. Prepared for the Smithsonian Institution by JOHN G. MORRIS. May, 1860. Pp. 76. ARTICLE III. CLASSIFICATION OF THE COLEOPTERA OF NORTH AMERICA. Prepared for the Smithsonian Institution by JOHN L. LE CONTE, M. D. Pp. 302 and 47 wood-cuts. Pp. |