INDEX. 193 



Page 



Rabic Virus 33 



Rademacher, Louise 33 



Rainfall 33 



Rainfall, preglacial 142 



Rat, White 34 



Ravines in the vicinity of Aiui Arbor 113 



Red-breasted Nuthatch 168, 169 



Redheaded Duck 170, 171 



Red-tailed Hawk 170 



Red-winged Blackbird , 168-171 



Reeves, Cora D • 33 



Righard, Jacob 33 



Reptiles from New Mexico 34 



Robin, American 168 



Robison, Floyd W 34 



Rose mildew 40 



Ruby-crowned Kinglet 169, 170 



Ruffed Grouse 169 



Russell, Israel Cook : 28. 144 



Rust Fungi 40, 41 



Rusty Crackle 170, 171 



Ruthven, A. G 34, 184 



Sackett, W. G. . 14, 33 



Saginaw Bay basin 143 



Saginaw-Maple-Grand Valley 140, 141 



St. Clair river cour.se 138 



Salt shaft 184 



Sapsucker, Yellow-bellied 168, 169 



Sargent, C. S 129 



Sanilac county 138 



Screech Owl. 170 



Secretary Michigan Academy of Science 14 



Sempervivum 38 



Shales 179 



Sharp-shinned Hawk 170 



Shore lines 142 



Shore lines, Michigan 138 



Short -tailed Shrew 34 



Shall, Franklin 34 



Sibley Quarry 183, 184 



Silurian strata 177, 183 



Smith, B. G 34 



Snow Tree Cricket 34 



Soil bacteria 33 



Soil bacteria, dissolving insoluble phosphates 160 



Solitary vireo 1 69 



Southern Ontario, geological map 182 



Sparrow, Swamp 169, 170 



Sparrow, Song 167, 168, 169, 170, 171 



Sparrow, Vesper 167, 168 



Sparrow, Chipping 168, 169, 170, 171 



Sparrow, Tree 169, 170 



Sparrow, Fox 170, 171 



Sparrow, Field 168, 169, 171 



Sparrow, White-throated 169, 171 



Sparrow, White-crowned 170 



Species, collective 38 



composite 38 



definition of 36, 37 



elementary 35, 38 



Spirillum Obermeieri 33 



Starters for cream 163 



Sucker Creek test well 179, 180, 184 



Surface drainage, Michigan 138 



~ Sylvania Sandstone 184 



