y 730 first class passengers, and invisible, ungraspable air in which for centuries nothing has Fig. 5 shows, according to Dr. Miquel, four specimens of has no steerage accommodations. The engines of this mag- been seen but winged birds and insects, the microscope atmospheric bacteria. " The… … ern part of New York State, is Fig. 4.-SF0BES OF CBYFTOGAMS X SOO. Fig. 3.-SF0BES OF CBTFTOO&MS X 500. ral micrococci." 37 miles long and two to four Such are the living organisms miles broad, 630 feet deep, its sur- that belong to the class of microbes whose existence and us, amid the dust that is…
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