SHAVING BOXES. 353 



Recent improvements, by w^hich the vulcanized fabrics are made 

 more pure and free from odor, render this use of gum-elastic 

 more deserving of special notice. The insertion of the bottle 

 tube, made wholly of gum-elastic, with a valve, and cemented to 

 the bottles, is an additional recent improvement. The cost of 

 canteens, hot-water bottles, and other flexible kinds, may also 

 be much reduced through their manufacture by machinery, 

 after the manner of air- work, described Vol. I., page 



HOT-WATER BOTTLES. 



Are manufactured of unvulcanized fabrics, with a large 

 tube of artificial ivory, and India rubber bottle-stopper. They 

 are intended to be used in cases of sickness to give warmth to 

 patients, or for travelling in cold weather, but may also be used 

 for other purposes. These bottles are unquestionably among 

 the most convenient and effectual means of applying warmth to 

 patients in the hospital and sick room, or for the service of 

 those who suffer from coldness of the feet. 



IMPROVED HOT-WATER BOTTLES. 



Are made of unvulcanized fabrics, like other hot-water bottles, 

 with the addition of a tunnel made of caoutchouc fabric, attached 

 to the neck, in order that they may be filled conveniently on all 

 occasions, without the use of a separate tunnel. 



They are also made with partitions, like some kinds of air- 

 work, in order to keep them in the shape desired. Some of 

 the various patterns are represented by figs. , plate 



SHAVING BOXES. 



Most persons who use shaving boxes are aware that some im- 

 provement is needed in them, especially for travellers. When 



-Ol^Si)© 



