INDEX. 175 



Page 



Plover, killdeer, nesting habits of 6S 



Plum curculio, less destructive north than south 35 



Plum rot, absence of in Northern Michigan 35 



Plums in Upper Peninsula 35 



Poisonous germs in drinking-water 100-102 



in foods (reference) 88 



Pollock, Dr. J. B., on effect of mechanical shock on plant growth (reference) 119 



on root-curvature 88 



Polluted water causing septicemia 100 



Polygyra, species of peculiar to eastern N. America 40 



Polygyrse wholly confined to America 56 



Polyporus 98 



Polyporus cinnabarinus, on paper birch 98 



Polystictus 98 



Poocsetes gramineus, nesting habits and food 71 



Pope, Willard S., obituary notice of 87 



Poplars and elms, study of in winter (reference) 119 



Population, probable sources of 103-106 



Post-Pliocene ice sheet and its effects 53 



Potamogeton, nine species in Pine river 28 



Potamogeton perf oliatus 27 



Potamogetonetum '. 27 



Prairie hen, nesting and food habits 74 



Prairie horned lark, nesting and food habits 70 



Prairies of Michigan, flora of 116 



Prescott, Dr. Albert B., on comparison of milk, meat and seed fats (reference) 109 



Preservation of useful and harmless birds 41 



President of Academy, duties of 148, 151 



Printing of Dr. Spalding's presidential address authorized 109 



Problems in agriculture, new and old 143-145 



Productus sanctatus 63 



Programme of meetings, how arranged 149 



Protection of birds, legislation proposed 117 



Publications of Academy, how controlled 148, 150, 153 



how distributed 153 



Pulmonate fresh-water mollusks, origin of 47, 56, 57 



often circumpolar or cosmopolitan 47 



Pupa and Zonites found in the Carboniferous 55 



Pupida^ and Zonitida? abundant in Boreal region 46 



Pyrite at Grand Rapids 64 



Q. 



Quail, food and nesting habits of 68,69 



Quaking bogs and their origin 24 



Quarantine and disinfection : 17 



Quaternary deposits, shells of (reference) 8S 



Quercus acuminata, unusual form of 99 



Quercus prinoides, remarkable form of 98 



Quorum of council 149 



Quorum at meetings of Academy 149 



R. 



Rabbit septicemia 100 



Raccoon, habits of 133 



Rail, king, nesting habits 75 



Rallus elegans, nesting habits 75 



Ramsdell, J. G., on peaches and temperature 33 



Ranunculus circinatus in Pine river 28 



Raptores, meadow-nesting species 75 



Raspberries and humidity 36 



red, shipped for making brandy 35 



wild, abundant in Northern Michigan 35 



