Aldrich, Thomas Bailey, 1836-1907 · Boston, CT : Hall and Locke · leaf 367
ia from two retorts shownin Fig. 7. A still simpler way of doing the same thingis to put a little common salt in a saucer and pour overit a little oil of vitriol; this is put into the box, andover the floor of the box common smelling-salts is to bescattered. You see there are dense volumes of… … n r~i Fig. 7. How TO MAKE THE SmOKE Rings. The Stars 333 enougli to feel the ring, you would experience a httlepuff of wind; I can show this by blowing out a candlewhich is at the other end of the table. These ringsare made by the air which goes into a sort of eddy asit passes through the hole. All…
Children's literature
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
![An illustration from St. Nicholas [serial] (1873)](https://img.insideoutlibrary.com/img/200/ia-stnicholasserial181dodg-360-256.webp)
