Some fresh-water diatoms from Lonavla Hill-Station in the Bombay-State (Maharashtra) H. P. Gandhi OriginalPaper Pages: 128 - 154
A method for determining the surface areas of various aquatic plants J. J. HarrodR. E. Hall OriginalPaper Pages: 173 - 178
A preliminary study of some chemical constituents of the bottom deposits of the White Nile D. P. DroverH. M. Beshai OriginalPaper Pages: 179 - 184