106 INDEX. 



Bacilli-tubercle, mode of action of, in producing consumption . . 60 



Bacillus of tuberculosis ........ 59 



Bacteria, colonies of ........ 12 



definite knowledge of, as explaining many mysteries of disease . 92 

 disease-producing .... 53 



forms of 7 



" in air as disease producers ...... 52 



" " in-doors dust ........ 27 



" " out-doors dust ........ 21 



" modt of determining number of, in air . . . . 13 



" modes of disposal of, in the body when inhaled . . .46 



" " " formation of dust from ..... 8 



14 modes of study of . . . . . . .11 



" nature of 7 



" occurrence of, in nature ...... 8 



" relations of, to infectious diseases ..... 55 



" significance of, in air in general ..... 20 



Bacterial-diseases, remedial agents in . . . . .96 



Bacteriology as throwing light on disease . . . . -91 



Berlin, air analyses in ........ 23 



Biological air analysis ........ 19 



Blood-poisoning ......... 55 



Boston, air analysis in ........ 23 



Burning, best mode of destroying germ-laden sputum in consumption . 72 



Carnelly, air analyses by . . . . . . . . 23, 33 



Catarrh, relations of dust to ....... 52 



Cells, ciliated, in air tubes ....... 38 



Central Park, N.Y., analysis of air in . . . . . .25,26 



Cleaning of rooms . . . . . . . . 82, 86, 100 



Cleanliness, importance of, in living places ..... 90 



Cloths, dangers of use of, to receive tubercular sputum . . 71 



College of Physicians and Surgeons, N. Y., air analysis at . . -33.34 



Consumption . . . . . . . . . .56 



" a preventable disease ...... 57 



" heredity of . . . . . . . .59 



" importance of, as compared with other diseases . . 62 



" insidiousness and slow beginning of . . -57 



" mode of transmission most common . . . .64 



" mortality from, in various cities ..... 63 



" most direct means of preventing spread of . 71 



" not always a hopeless disease . . 73, 101 



