INDEX. 109 



PACK 

 Germs in in-doors dust ........ 27 



41 in out-doors dust . . ... . . . .20 



44 colonies of. . . . . . . . .12 



41 nature of.. .......7 



44 origin of, in in-doors air . . . . . . .30 



44 safeguards of body against aerial ..... 36 



Hotel bedrooms as sources of dust-infection . . . r. . 89 



House furnishing as affecting the risk of dust-infection . . .78 



Immunity of body to disease germs ...... 49 



In-doors air, analysis of ........ 27-35 



Infection, dangers of, from street dust ...... 75 



44 degrees of readiness of, in different diseases . . .94 



Infectious diseases ......... 55 



44 remedial agents in . . . . . .96 



Isolation of the sick as means of prevention of bacterial diseases . . 54 



Lungs, most common seat of tuberculosis . ... . 65 



44 pigmentation of, by inhaled dust . . . . .44 



Lymph, filtration of, in the lungs ...... 45 



Lymph-glands as dust-filters ....... 46 



localized tuberculosis in . . . . . .67 



Measles . . . . . . . . . 55, 94 



Meat, tubercular, as food, dangers of . . . . i . 64 



Michigan, frequency of consumption as compared with small-pox in . 62 



Micro-organisms in in-doors dust ....... 27 



44 ' 4 out-doors dust . . * . . ' . .20 



nature of ........ 7 



44 safeguards of body against . . '. . .36 



Milk from diseased cows, dangers of ...... 64 



Motes in the sunbeam ........3 



Moulds .......... 7 



Mould-spores in air analysis ....... 18 



44 * 4 dust ........ 9 



44 preponderance of, in wet weather . . . . 22 



Neumann, air analysis by . .......33 



New York, air analysis in . . . . . . . . 23-26 



44 l4 filthy streets of ....... 21 



Official negligence no excuse for private indifference to cleanliness . .90 



