Published with no. I, III-IV are the following papers: The American element in the Phillipine flora; The source of Manila elemi; Notes on Cuming's Philippine plants in the herbarium of the Bureau of Government Laboratories; by Elmer D. Merrill.--Notes on Philippine Gramineæ, by E. Hackel.--Scitimineæ philippinenses, by H.N. Ridley.--Philippine Acanthaceæ, by C.B. Clarke.
