rubber manufacturer knows that a pound of Para rubber will go 

 as far in compounding as ten pounds of boiled or oxidized oil. 

 The oil costs, say, seven cents a pound, and rubber at less than 

 four times that price will certainly dispossess it. Then, too, it is 

 more flexible, easier to work and far more durable. 



Artificial leathers are likely to find it difficult to compete with 

 the rubber product that will come in with low-priced rubber. . 

 Indeed, all of the rubber counterfeits made of cellulose, celluloid 

 or casein, whether soft or hard, are likely to find that the original 

 will be preferred just as soon as it is the cheapest. 



RURCER SOUND DESTROYERS. 



India rubber as a deterrent to noise has gone far. It will go 

 farther. The rubber-shod- taxi-cab has stilled the echoing" klip- 

 perty-klip of the flat-footed cab horse. It should be used to si- 

 lence the clash and clatter of the modern city electric car and the 

 jar and clamor of elevated and subway trains. In a score of 

 industries it is needed — as cushions under modern printing 

 presses, laundry machines and other city nuisances. 



Would it not be possible also to still the shrill clatter of the 

 thousands of shuttles in great weaving plants by the use of 

 rubber ? 



The boiler maker certainly needs some sort of rubber silencer 

 for his work, and the pneumatic riveter will not be perfect until 

 rubber cushions absorb the far-reaching" sound of its blows. 



When this is accomplished and the clay of deliverance comes, 

 every bell in Christendom should send out its peal of prai-e — 

 with soft rubber tongues. 



RUBRER GLUE AND MUCIL.\GE. 



Into the broad field of glues, mucilages and other adhesives will 

 a great variety of new rubber cements force their way. The 

 only deterrent will be high cost of solvent. But with low-priced 

 Hevea rubber and the consequent fall in the price of rubber scrap, 

 that will be melted or distilled, and new stickers and valuable bv- 

 products will be obtained that will find wide n"iarkets. Certainly 

 a rubber glue that would be self-vulcanizing and that woulil not 

 soften and let go in damj> weather would be a boon. 



INDIA RURI'.ER ROADS. 



Roadways of rubber are ideal, theoretically, but the asphalts 

 under modern manipulation are likely to be always cheaper and 

 just as eflfcctive. Rubber sidewalks (once a non-slipper com- 

 pound is evolved) made of sera]) are likcK- one day to run foi 

 miles in the modern citv. 



