Index — / 'oliniic XV. 



light in weather changes, lo; 



uniformity of, in relation to 



health, lo ; reduction of, does not 



cause disease, ii ; extremes of, in 



United States, 12 ; daily variation 



of, 12. 

 Tetanus, 23. 

 Tetradium, 151 ; genus defined, 153; 



T. fibratum, 153, 154; minus, 



154 ; columnare, 154. 

 Tetradiidic, 151. 

 Tomoxia, species of, found near 



Cincinnati, 124. 

 Trichia, 129. 

 Trichina spiralis, 21. 

 Trimerella, 163. 

 Troposporium album, 52. 

 Trustee elected, 60. 

 Tubulina, 129, 130; genus defined, 



132; T. cylindrica, 132; Casparyi, 



132; caespitosa, 133, 139. 



Tunnel for utilizing Niagara's 

 water power described, 169, 170. 



Water, relation to disease, 26, 27, 

 29; myths regarding, 26, 27; tests 

 for pure, 2S ; chemical tests of, 

 28; methods of examination, 30; 

 bacteria in, 30; "ground water," 

 31 ; relation to typhoid fever 

 epidemics, 31 ; self purification 

 of, by rivers, 32. 



Weather, atmospheric pressure a 

 component, 13. 



Weather, Water and Disease, 5 ; 

 relations to the individval, 5 , 

 factors of, 6. 



Werner, W. C, variations and inter- 

 mediate forms of certain asters, 55. 



Wind, effects on weather, 16. 



Zaphrentis, 144 ; definition of 

 genus, 144 ; Z. ohioensis, 145, 146. 



Zoantharia, 96, 97, 151 ; Z. sclero- 

 dermata, 97. 



