38 



MISCELLANEOUS PAPERS. 



that when inserted in the end of the form the latter is expanded to its 

 original size. The receiver ((/) for the form is made b}- drawing out 



Fig. 3.— Apparatus for testing the burning quality of wrapper tobacco: a, entrance of air current; b, 

 wrapper to be tested; e, c, glass tube to which the form bearing the wrapper is attached bj' means 

 of tliecork, m; d. d, large glass tube fitted with corks, n, n, through which passes c, c; /, flask 

 containing water; o, small glass tube dipping beneath the surface of the water in /; p, short glass 

 tube leading from/; h, pump by means of which the current of air is secured; c, e and </, </, rubber 

 tubing connecting parts of apparatus; t, water tap: /, outflow of water. 



one end of a short piece of thick-walled glass tubing. All of the above 

 dimensions are based on tubing having an internal diameter of 14 mm. 

 (9/16 inch) and an external diameter of 18 mm. (11 16 inch). The 

 small end of the re- 

 ceiver is fitted with 

 a soft cork (/>), by 

 means of which it is 

 connected with the 

 other portion of the 

 apparatus. 



From the leaf to 

 be tested, which 

 should be quite " e c 



damp the wrapper Fig. 4.— construction of form on which leaf is wrapped for use in 



. • . i? , apparatus shown in figure 3: o, glass tube for receiving the form; 6, 



IS cut into a lOrm cork by which receiver (a) is connected with remainder of apparatus 



quite similar to that shown in figure 3; r, rubber band for collapsing the form; rf, plug 



1 J. . 1 for expanding the form; e, form on which leaf is wrapped. 



used tor cigars, and 



the same rules are observed as regards the cutting of right-handed and 



left-handed wrappers, etc. Beginning at the outer end the wrapper is 



100— IV 



