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Pop7ilar Sciejicc MonUiJy 



the swiftest current, ami in rapids 

 between stones. Sometimes they are 

 found in great numbers along the 

 brink of a waterfall. The observer 

 must look carefully to see the net, as it 

 is usually obscured by the dirt that 

 collects and adheres there in little 

 masses. But if he is so fortunate as to 

 find one recently completed, the net- 

 like formation is clear and beautiful. 



In some places empty cases may be 

 seen at the edge of the brook. Often 

 they almost completely cover the rocks 

 and the earth between them. In such 

 instances the insects have emerged at 



Selling Cars Under the "Big Top" 



THE BIG TOP" is the circus man's 

 term for the main tent with the 

 three rings. One of these huge spreads 

 of canvas has been taken over by a Los 

 Angeles dealer in used cars to sell every- 

 thing propelled b>- motors. 



The tent will hold five thousand peo- 

 ple, and it has a display capacity of five 

 hundred cars, trucks and "jitneys." 

 There is an oval track one eighth 

 of a mile in circumference, and the 

 machines go whizzing about this as 

 if it were an indoor speedway contest. 

 The crowd looks on from the central en- 



A circus-tent now used as a market-place for second-hand automobiles. A twenty per cent 

 incline in the center demonstrates the climbing ability of the cars 



the time of a freshet and the retreating 

 water has left the cases stranded higli 

 and dry. The two empty cases here 

 illustrated were obtained in this manner. 

 They were selected from a large number 

 because they are perfect examples of 

 what the mason calls ashlar work, that 

 perfect fitting together of stones without 

 packing. Common as are the caddis 

 worms and as often as they have been 

 observed, not a single one has had its 

 life histf)ry recorded in this country. A 

 fascinating field for original investiga- 

 tion is here open to the first comer. ICn- 

 deavor along this line is sure to be in- 

 teresting. 



closure and judges the merits of the used 

 cars by what they can do — not h\ fresh 

 paint and \-arnish. 



An additional test is afforded In' the 

 twenty i)er cent incline in the center oi 

 the arena. Here the car shows what it 

 can do on a grade. This platform is also 

 usefl as an auction block for crowded 

 (wice-a-wcek sales. The machine whirls 

 about the track, runs up the incline to 

 the elevation well above the heads of 

 the sjK'ctators, and is then knocked (k)wn 

 to the highest bidder. 



Private sales continue all through 

 the week. A dozen salesmen are em- 

 ployed. 



