34 



MISCELLANEOUS PAPERS. 



check valve oonyisting of a T-tube (e), the lower arm of which dips 

 beneath the surface of the water in a suitable vessel (/), thus prevent- 

 ing a backward draft through the cigars while the aspirator is filling. 

 The smoke which escapes through this valve has a very disagreeable 

 odor; hence, it is well to use a bottle fitted with a stopper with two 

 holes, through one of which passes the lower arm of the T-tube ((/), 

 while through the other passes one end of a long tube (/}), which car- 

 ries away the obnoxious fumes. The aspirator consists of a glass cyl- 

 inder (/), the upper end of which is fitted with a rubber stopper 



Fig. 2.— Apparatus for testing the burning quality of cigars: a, b, c, d, holders for cigars; e, T-tube, 

 the lower arm of which, g, dips beneath surface of water in/; h, h, tube for leading away tobacco 

 smoke; i, aspirator; k, tube leading to water supply; o, p, long and short arms of siphon; I, tube 

 connecting cigar holders with aspirator; m, tube, with bulb, attached to long arm of siphon; «, 

 flask carrying the cigar holders. 



containing two holes through which pass tubes leading to the water sup- 

 ply (Jc) and to the flask carrying the cigar holders (/), respectively. 

 The lower end of the cylinder is closed with a rubber stopper bearing 

 the small arm of the siphon (o). The tube furnishing the water sup- 

 ply is connected with a reservoir provided with a constant-level attach- 

 ment. To the lower end of the small arm of the siphon is attached a 

 glass tube (m) bearing a small bulb which materially assists in break- 

 ing the flow of the water at the moment the aspirator is emptied. The 

 tubing connecting the parts of the apparatus should not be less than 



100— IV 



