Popular Science Moiitlilij 



lil 



m 



"Sandwich-Man" Clad in 

 an In^iitation Bullet 

 THIS is not a new 

 type of cli\iiig suit, or 

 a patent respirator used to 

 repel a gas attack, or a new- 

 fangled barrel for the fellow 

 who has lost his clothes. It 

 is merely an advertising 

 stunt, a sort of super-sand- 

 wich-man, to attract the 

 eyes of the curious. On the 

 back of the device are letters 

 which describe a product on 

 the market. The conical 

 headpiece resembles alumi- 

 num, and a circular oijening 

 is cut in it just large enough 

 for the wearer to sec his wa>- 

 ahead and breathe comfort- 

 ably. The shorter the w'earer 

 the more mysterious be- 

 comes the appearance of the 

 powderless bullet. If no 

 part of the bod\- except the 

 feet are visible as the bullet wends its 

 way doAvn the avenue, it is pretty sure 

 to be the cynosure of thousands of 

 wondering eyes. 



The newest recruit to 

 the peaceful army of 

 "sandwich-men" 



Kneading Potter's Clay 

 with the Bare Feet 



THE illustration 

 shows a man sub 

 duing a pile of recal- 

 citrant clay. If it 

 were possible to use 

 his hands in knead- 

 ing the clay the 

 man w' o u 1 d no 

 doubt prefer to do 

 so, but without a 

 mechanical knead- 

 er he is obliged to 

 use his feet, which 

 method has been 

 used for many cen- 

 turies in the old 

 world. 



It requires no 

 little amount of 

 strength to knead 

 clay, and when the 

 feet are emplo\'ed 

 the weight of the 

 bodv is utilized. 



A modem potter kneading clay with his feet, 

 as it was done in the days of Cleopatra 



Why Gold Pieces Are Always 

 "Doctored" 



WH\' <lon"t jewelers melt 

 up Sio and S20 gold 

 pieces in order to use the 

 metal in the manufacture of 

 gold jewelry .■" Indeed, gold 

 pieces were used some forty 

 years ago by enterprising 

 jewelers and with success, 

 too — until the practice was 

 stopped in a very novel 

 but effective way. In those 

 days jewelers bought enough 

 Sio and S20 gold pieces for 

 the work in hand. The gold 

 was melted, the necessary 

 alloys were added, and all 

 manner of fine Etruscan 

 work was turned out. 



It was not long, however, 

 before the Government be- 

 gan to wonder what was 

 becoming of its gold pieces. 

 The officials knew the people 

 were not hoarding gold, so a quiet 

 investigation took place. It w'as then 

 discovered that the makers of gold 

 jewelry w-ere to blame. Having found 

 the cause, it was not difficult for the 

 officials to find a cure. They did it 

 by "peppering" the coins with 

 iridium. Resembling black 

 emery in the crude state, 

 iridium requires a heat 

 of 3,542 degrees Fah- 

 renheit to melt it. 

 Gold, on the other 

 hand, can be melt- 

 ed at 1,913 degrees 

 Fahrenheit. It is 

 easy to see, then, 

 how the unsuspect- 

 ing jeweler, melting 

 up his gold pieces 

 at the temperature 

 required, got a large 

 number of unnielt- 

 ed specks of iridium 

 in his metal when 

 it cooled. 



You can imagine 

 his dismay when 

 his analysis and 

 deductions re- 

 vealed that he had 

 been trapped. 



