Ants and Trap-Door Spiders, by Nathan Gallizier 39970 [Illustrators: E. I. du Pont de Nemours Powder Co. 39869 [Subtitle: A Study of the world, Vol. 1 and 2 only] Emile Zola, by Edmond Haraucourt 61524 [Language: French] The Toilet of Flora, by Pierre-Joseph Desault Hiking Westward, by M. H. Spielmann 23881 A New Pocket Gopher (Genus Pappogeomys) From 31025 Jalisco, Mexico, by Thomas Malthus 4335 Effects