INDEX 



A. 



PAGE 



Act for Publication of Reports 8 



Appropriation for 1917-1918 9 



Andrews, F. M. — 



Studies on Pollen 163 



Stoppage of a Sewer Line by Roots of Acer Saccharum 165 



Anthocyanin of Beta Vulgaris 167 



Improved Forms of Maximows' Automatic Pipette 169 



The Effect of Centrifugal Force on Plants 175 



The Absorption of Iron by Platinum Crucible in Clay Fusions, Wm. 



M. Blanchard and Roscoe Theibert 189 



Artificial Selection on Bristle Number in Drosophila Ampelophila, 



The Effect of, Fernandus Payne 249 



Anthocyanin of Beta Vulgaris, F. M. Andrews 167 



B. 



By-laws '^ 



Beals, C. C— 



The Effect of Aeration of the Roots of Zea Mays 177 



Brief Notes on the New Castle Tornado 219 



Behrens, C. A., The Erdmann New Culture for Protozoa 297 



Blanchard, William, The Absorption of Iron by Platinum Crucible 



in Clay Fusions 189 



C. 



Constitution 5 



Committees, 1918 12 



A Comparison of Plant Succession on Hudson River Limestone with 



That on Niagara Limestone, M. S. Markle 109 



Chemical Estimation on the Fertility of Soils in Fulton County, 



Indiana, R. H. Carr and W. K. Cast 201 



Carr, R. H., Chemical Estimation on the Fertility of Soils in Fulton 



County, Indiana 201 



Clark, Howard Walton, The Unionidae of Lake Maxinkuckee 251 



Cromwell, Hobart, Further Experiments with the Mutant, Scarlet, 



from Drosophila Repleta 287 



Conner, S. D., The Injurious Effect of Borax in Fertilizers on Corn 195 



Corn Pollination, Improved Technique for, Paul Weatherwax 105 



(t73) 



