298 
LAKE MAXINKUCKEE, 70. 
Leonids of 1898, 151. 
Lilium candidum, endosperm haustoria in, 
168. 
Linear relation, etc., 154. 
Linseed oil, iodine absorption of, 160. 
Liquid, agitation of, 85. 
Locomotive boiler coverings, 149. 
Luten, D. B., 75. 
MATHEMATICAL DEFINITIONS, 147. 
McBeth, Wm. A., 72. 
Members, active, 15. 
Members, fellows, l4. 
Members, non-resident, 15. 
Meyer, J. O., 160. 
Miller, J. A., 151, 154. 
Mitchell, G. L., 229. 
Montgomery, H. T., 277. 
Mottier, D. M., 164, 166, 168, 169. 
Multiplication, note on, 101. 
Musecatatuck at Vernon, Ind., 270. 
Mycetozoa, affinities of, 209. 
NATIVE PLANTS, germination and seed- 
lings of, 215. 
Nematoid worm in an egg, 258. 
Newsome, J. F., 289. 
New triangle and some of its properties, 89. 
Noyes, W. A., 160. 
Nuclear division in vegetative cells, 164. 
OFFICERS, 1898-99, 8. 
Officers from beginning, 10. 
Old shoreline, 288. 
Old Vernon, 273. 
Olive, E. W., 209. 
PIMEPHALES NOTATUS, 233. 
Point invariants for the Lie groups of the 
plane, 119. 
President’s address, 35. 
Price, J. A., 289. 
Proceedings, fourteenth annual meeting, 33. 
Program, fourteenth annual meeting, 27. 
RED MOULD, 202. 
Regular polygon, on method of inscribing, 92. 
Ripley, G. E., 169. 
Rothrock, D. A., 119, 135. 
SCOVELL, J. T., 70, 274. 
Shepherd, J. W., 160. 
Slonaker, J. R., 253. 
Smith, C. E., 101. 
Snow-pumping engine, performance of, 147. 
Snyder, Lillian, 186. 
Sound, propagation of, etc., 82. 
Sounds, intensity of telephonic, 84. 
Stevens, M. C., 147. 
St. Joseph and Kankakee atSouth Bend, 270. 
Stuart, Wm., 64. 
TABLE OF CONTENTS, 3. 
Theory of envelopes, 88. 
Thomas, M. B., 62, 163. 
Triangle, concurrent sets of lines in, 93. 
Troyer, D.'J., 258. 
Typhlomolge, eye of, 251. 
Typhlotriton spelaeus, eyes of, 252. 
UREDINE OF MADISON AND NOBLE 
COUNTIES, 186. 
VARIATION OF SPECIES, two cases of, 288. 
Vegetable diet, indigestible structures, etc, 
62. 
Venous sinuses, supply of blood to, 229. 
Vesuvian cycle, 72. 
Voris, JH, 233: 
WABASH, TERRACES OF THE LOWER, 
274. 
Waldo, C. A., 35, 72. 
Wasted energy, 72. 
Water, evaporation of oil-covered, 85. 
Webster, F. M.., 224, 225, 227. 
Woollen, W. W,, 53. 
Wright, John S., 62. 
X-RAY TRANSPARENCY, 74. 
YODER, A. C,, 242. 
