THE WORLD'S ADVANCE 



281 



Good joints were made irf seven to 

 ten minutes when working in a trench. 

 In one afternoon fifteen leakless joints 

 were made with only one torch, the ap- 

 paratus being moved a distance of twenty 

 feet after each weld. The pipe was 

 tested under air pressure, using soap 

 suds on the joints to detect leaks. 



As a filling material No. 8 gauge soft 

 steel wire was used, since it was found 

 that this material flows better and has 

 less tendency to stick than Norway iron. 



A MINER'S BLAST THAT OPENED 

 A BOTTOMLESS PIT 



A miner's blast opened a subterranean 

 pit of undetermined depth near Volcano, 

 Nev., a small town eighteen miles north 

 of Tonapah. A miner was lowered into 

 the cavern for two hundred feet with a 

 light to examine the opening. He re- 

 ported that he could not find or see 

 the ends of the fissure. Stones dropped 

 through the opening could be heard 

 bounding from wall to wall until the 

 sounds died away but no sound which 

 would indicate the bottom was reached 

 was heard. Lights showed sparkling 

 stalactites hanging from the sides of the 

 cavern. 



A QUEER ELECTRIC BUG 



Composed of electric light bulbs, and 

 with wings of stained glass and legs of 

 thin metal strips, the "insect" shown in 



the illustra- 

 tion forms 

 the conception 

 of a Kodak 

 Bug, or at least 

 that is the idea 

 of the Los An- 

 geles camera 

 man who de- 

 signed it. It is 

 wired for illu- 

 mination, s o 

 that when set 

 in a show win- 

 dow it forms a 

 display that at- 

 tracts instant 

 attention. 



The "Kodak Bug" the At- 

 tractive Window Display of a 

 Photographic Supply Store. 



By Lettering His Name and Occupation on an Old 



Sink, a Plumber Has Made An Effective Sign for 



His Business. 



THE KITCHEN SINK AS A SIGN- 

 BOARD 



That the limit to novel business signs 

 is not yet is demonstrated by the accom- 

 panying illustration. This plumber has 

 created something new along this line by 

 the painting of his name and business 

 upon the bottom of a worn-out sink. 

 The sink has in turn been fastened to 

 the trunk of a tree in the front yard of 

 the plumber's home. 



JITNEY ROLLING CHAIR 



The latest feature for the seaside re- 

 sort is the jitney rolling chair. For years 

 past rolling chairs have been operated at 

 all of the beach towns of any importance, 

 but it seems as though these man-opera- 

 ted affairs have at last seen their day. 

 The unique bus seen in the accompany- 



