Margarodite, 130 May apple 156 Medicine xliii Members vii, xxxv Mercury xl, 126 Meteorology xlii, xlviii, liii, lxxi Mimetite 127 Mineralogy of Missouri 126 Planimeter lv Plants, alcohol in, lxviii respiration of, lxviii, lxxii Pohle pump Ixix Pollination lv, lvii Porphyry 130 President xxxvi, xliii, 1, lxi, lxxvii Mississippi Valley, Devonian of, Prism, refraction by, xlvii, 133 xliii, liii Quartz 128 Railroad trains, friction of air on, Refraction of electric rays liii of light xlv, xlvii, 133 Reptiles of Missouri lxxvi Registers, passage of air through, Numbers, summation of series of, Respiration of plants lxviii, lxxii Rhodochrosite 128 Riley, C. V. Memorial xlvi Rotation of cathode disc lv, 181 Salamander 502 Portrait lxix Santa Clara flora lxxiv, 393 School attendance lv, 185 Palm fiber li Sander, Dr. Enno. Saturn xlvii Parabola li Parasitism lxi Peat 130 Petkoite 128 Petroleum 131 Phenology lxxi Phoenix, myth of, xl ventilation xlv Seed-eating insects xliv Series of numbers xliii, liii Siegenite 127 Silicates 129 Silk of grain loft lii Stang planimeter ly |