iS° 



SUBJECT INDEX. 



Bacteria 



n Boston sewage 45 



n Cambridge supply 10 



n Chicago drainage canal 39 



n Connecticut River 42 



n deep wells 17, 40 



!n driven wells I7> 4° 



n filter effluents 40 



n Framin gham supply 42 



n ground water 15, 39 



11 ground waters, peculiar character of 18, 39 



n Hartford supply 42 



n ice 12 



!n Isar River , 39 



n Lake Champlain 10 



n Lake of Lucerne 10 



xi Lake Zurich 38 



n lakes and ponds 10 



n Loch Katrine 10 



n Loch of Lintralthen 10 



in Lynn supply 10 



n Medford supply 10 



n Merrimac River 9 



n Newport supply 42 



n Ohio River 41 



in Ourcq River 9 



n Peabody supply 10 



n Plymouth supply 10 



n polluted streams 39 



n polluted waters, changes during storage 27 



n polluted well 42 



n rain 8 



n relation to food supply 14 



!n Salem supply 10 



n sea-water at Naples 10 



n sea-water at Wood's Hole io 



n Seine 39 



n shallow wells 15, 16 



n snow 8 



,n springs 15, 16 



n stored samples, multiplication of 2 5~27 



