“ By N. L. Britton. Development of the sporocarp of Griffithsia Bornetlana. By V. M. Spalding On the seed-coats of the genus Euphorbla. By L. H. Pammel The development and function of the so-called cypress "knees," together
with a short consideration of the natural habitat of the tree. By W. P. Wilson Forest trees of Indiana. By Stanley Coulter The trimorphism of Uromyces Trifolil (Alb. and Schw.) Wlnt. By J. K. Howell Notes on a monograph of the Kenus Lechea. ”

“ By Sereno Watson Geographical distribution of North American Umbelliferæ. By John M. Coulter The distribution of Hepaticæ of North America. By Lucien M. Underwood. The migration of weeds. By Byron D. Halsted. Geographical distribution of the grasses of North America. By W. J. Beal. Geographical distribution of North American Cornacæ. By John M. Coulter On the general geographical distribution of North American plants. ”