568 



Popular Science Monthly 



What a million dollars in gold looks like. The 

 fifty thousand tv/enty-dollar gold pieces in 

 this display weigh one and seven-eighths tons 



Did You Ever See a Million Dollars in 

 Gold ? They Weigh Nearly Two Tons 



JN a recent celebration held in San 

 Francisco, one of the chief attractions 

 was a pile of a milHon dollars in gold. The 

 privilege of having a good look at all this 

 money was given the guests by the City 

 Treasurer who offered to make the display 

 before the coins were released on their 

 separate adventures in the business world. 

 There are fifty thousand twenty-dollar 

 gold pieces in this display,- which means 

 that nearly two tons of gold had to be 

 brought from the treasury. The coins were 

 all minted at San Francisco within the past 

 year; and if they were placed one on 

 top of the other, a pile four hundred 

 and seventeen feet high would be 

 formed. Such a pile would be 

 nearly one and a half times the 

 height of the large dome on the 

 Federal Capitol at Washington. 



gases. So imminent, indeed, is the dan- 

 ger, that the United States Bureau of Mines 

 has sent out a warning against operating au- 

 tomobile engines in small garages where the 

 ventilating facilities are poor. 



According to the Bureau the air in the 

 garage is rendered decidedly dangerous 

 after the automobile engine has been run- 

 ning fifteen minutes. The gas is carbon 

 monoxide; it is colorless, odorless, tasteless 

 and is extremely dangerous. The symp- 

 toms of carbon monoxide poisoning come 

 almost without warning, says the report, 

 and collapse in a garage generally proves 

 fatal, unless outside aid arrives very soon. 



The Convertible Knapsack — It Can 

 Be Changed Into a Tent at Night 



ANEW YORK sporting goods house has 

 lately placed on the market a knap- 

 sack which ought to put fifty per cent more 

 fun into a hiking trip. The knapsack does 

 away with the bother of carrying a tent 

 around — for the knapsack itself is merely 

 changed into a tent for the night. 



The knapsack is unlaced into the dog- 

 tent shown in the illustration. There are 

 flaps at the side which can be used to give 

 proper ventilation. A number of pockets 

 are also built in the side. In these, all the 

 ordinary articles of camping can be placed. 

 After a bivouac, the tent can be refolded 

 and turned back into a knapsack. The 

 entire outfit can be stored in the inside of 

 the knapsack out of the way. The knap- 

 sack is laced up and strapped on the 

 shoulders where it will require no further 

 attention from the traveler. 



Look Out for Automobile 

 Gas— It Is Fatal 



ARE you in the practice of 

 jl\. "warming up" your auto- 

 mobile engine in the garage with 

 the doors and windows closed? If 

 so, you stand a good chance of 

 being asphyxiated by the exhaust 



The problem of camp luggage is solved by this knap- 

 sack which can be opened out to form a comfortable 

 tent or laced up into a compact luggage-carrier 



