244 
INDEX. 
Page . 
Morrison, Edwin, Cohesion of water and alcohol 29 
Municipal hygiene. Part I 75 
Northward extension of the Lake Valley limestone 169 
Notes on American Cladonias 15 
Notes on a thermophilic bacillus 69 
Notes on the flora of the Bitter Root mountains. 87 
Pammel, L. H., Notes on the flora, especially the forest flora, of the 
Bitter Root mountains 87 
Pammel, L. H., and Fogel, Estelle D., Some railroad water supplies. ISl 
Peck, Morton E. , List of the flowering plants of Hardin county, Iowa. 193 
Plants new to the flora of Decatur county, Iowa 133 
Presidential address.!......., 1 
Problem in municipal waterworks for a small city. ' 143 
Ross, L. S. , apparatus for plating out petri dishes in the field..' 7 
Rueda, Grace Roode, Biology of Bacillns violaceous laurentius 121 
Seaver, Fred Jay, Annotated list of Iowa Discomyoetes 105 
Shimek, B., Presidential address. Botany in its relation to good citizen- 
ship .' 1 
Slime moulds of New Mexico 33 
Some notes on certain Iowa algae. 21 
Some railroad water supplies 151 
Switchboard and arrangement of storage battery at Simpson College. . . 139 
Synthesis of ethyl alcohol from acetylene. 179 
Tilton, John L. , Problem in munie^l waterworks for a small city 143 
Switchboard and arra^igement of storage battery at 
Simpson College 139 
Variation in the ray flowers of Anthemis cotula and other composites. . . 55 
Watt, Harry F., Growth and pigment production of Pseudomonas 
janthina 173 
