...result was substantially the same, though, as might be expected, the wool is by far the surest filter. The application of these experiments is obvious. If...his own, the germs by which contagious disease is said to be propagated, he will employ a cotton wool respirator. After the revelations of this evening,...

...was substantially the вате, though, as might be expected, the wool is by far tho surest filter. The application of these experiments is obvious. If...his own, the germs by which contagious disease is said to be propagated, he will employ a cotton wool respirator. After the revelations of this evening...

...result was substantially the same, though, as might be expected, the wool is by far the surest filter. The application of these experiments is obvious. If...his own, the germs by which contagious disease is said to be propagated, he will employ a cotton-wool respirator. After the revelations of this evening...

...unconsciously holds back the germs of the air. If the poison were a gas, it could not be thus intercepted. The application of these experiments is obvious. If...his own, the germs by which contagious disease is said tn be propagated, he will employ a cotton wool respirator. After the revelations of this evening...

...result was substantially the same, though, ae might be expected, tho wool is by far tho surest filter. The application of these experiments is obvious. If...his own, the germs by which contagious disease is said to be propagated, he will employ a cotton wool respirator. After the revelations of this evening...

...the surest filter in a contagious atmosphere is cotton wool. " If a physician," said the Professor, " wishes to hold back from the lungs of his patient,...his own, the germs by which contagious disease is said to be propagated, he will employ a cotton wool respirator. In the crowded dwellings of the London...

...result was substantially the same, though, as might be expected, the wool is by far the surest filter. The application of these experiments is obvious. If...his own, the germs by which contagious disease is said to be propagated, he will employ a cotton wool respirator. After the revelations of this evening,...

...sufficient quantity, and with due care, completely intercepts the floating matter on its way to the lungs. 1 The application of these experiments is obvious. If...the lungs of his patient, or from his own, the germs or virus by which contagious disease is propagated, he will employ a cotton-wool respirator. If perfectly...

...when used in sufficient quantity, completely intercepts the floating matter on its way to the longs. The application of these experiments is obvious. If...wishes to hold back from the lungs of his patient of from his own, the germs by which contagious disease is said to be propagated, he will employ a cotton-wool...

...a physician wishes to hold back from the lungs of his patient, or from his own, the germs or virus by which contagious disease is propagated, he will employ a cotton-wool respirator. If perfectly filtered, attendants may breathe the air unharmed. In all probability the protection of...